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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: CWABS, INC | COUNTRYWIDE HOME LOANS, INC | PARK MONACO INC | PARK SIENNA LLC | COUNTRYWIDE HOME LOANS SERVICING LP | THE BANK OF NEW YORK | THE BANK OF NEW YORK TRUST COMPANY, N.A You are currently viewing:
This Pooling and Servicing Agreement involves

CWABS, INC | COUNTRYWIDE HOME LOANS, INC | PARK MONACO INC | PARK SIENNA LLC | COUNTRYWIDE HOME LOANS SERVICING LP | THE BANK OF NEW YORK | THE BANK OF NEW YORK TRUST COMPANY, N.A

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 11/22/2006

POOLING AND SERVICING AGREEMENT, Parties: cwabs  inc , countrywide home loans  inc , park monaco inc , park sienna llc , countrywide home loans servicing lp , the bank of new york , the bank of new york trust company  n.a
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                                                                   Exhibit 4.1

==============================================================================






                                 CWABS, INC.,
                                   Depositor

                         COUNTRYWIDE HOME LOANS, INC.,
                                    Seller

                               PARK MONACO INC.,
                                    Seller

                               PARK SIENNA LLC,
                                     Seller

                     COUNTRYWIDE HOME LOANS SERVICING LP,
                                Master Servicer

                             THE BANK OF NEW YORK,
                                    Trustee

                                       and

                   THE BANK OF NEW YORK TRUST COMPANY, N.A.,
                                  Co-Trustee

                        _______________________________

                        POOLING AND SERVICING AGREEMENT

                           Dated as of October 1, 2006
                        _______________________________

                   ASSET-BACKED CERTIFICATES, SERIES 2006-20


<PAGE>


<TABLE>
<CAPTION>

                                                  Table of Contents

                                                                                                                Page
                                                                                                               ----

                                                      ARTICLE I.
                                                     DEFINITIONS

<S>                                                                                                              <C>
Section 1.01       Defined Terms..................................................................................10
Section 1.02       Certain Interpretive Provisions................................................................55

                                                     ARTICLE II.
                            CONVEYANCE OF MORTGAGE LOANS; REPRESENTATIONS AND WARRANTIES

Section 2.01       Conveyance of Mortgage Loans...................................................................56
Section 2.02       Acceptance by Trustee of the Mortgage Loans....................................................63
Section 2.03       Representations, Warranties and Covenants of the Master Servicer and the Sellers...............69
Section 2.04       Representations and Warranties of the Depositor................................................88
Section 2.05       Delivery of Opinion of Counsel in Connection with Substitutions and Repurchases................89
Section 2.06       Authentication and Delivery of Certificates....................................................90
Section 2.07       Covenants of the Master Servicer...............................................................90

                                                    ARTICLE III.
                                   ADMINISTRATION AND SERVICING OF MORTGAGE LOANS

Section 3.01       Master Servicer to Service Mortgage Loans......................................................91
Section 3.02       Subservicing; Enforcement of the Obligations of Master Servicer................................93
Section 3.03       Rights of the Depositor, the Sellers, the Certificateholders, the NIM Insurer and the
                  Trustee in Respect of the Master Servicer......................................................94
Section 3.04       Trustee to Act as Master Servicer..............................................................94
Section 3.05       Collection of Mortgage Loan Payments; Certificate Account; Distribution Account;
                  Pre-Funding Account; Seller Shortfall Interest Requirement.....................................95
Section 3.06       Collection of Taxes, Assessments and Similar Items; Escrow Accounts............................98
Section 3.07       Access to Certain Documentation and Information Regarding the Mortgage Loans...................99
Section 3.08       Permitted Withdrawals from the Certificate Account, Distribution Account, Carryover
                  Reserve Fund and the Principal Reserve Fund....................................................99
Section 3.09       [Reserved]....................................................................................102
Section 3.10       Maintenance of Hazard Insurance...............................................................102
Section 3.11       Enforcement of Due-On-Sale Clauses; Assumption Agreements.....................................103
Section 3.12       Realization Upon Defaulted Mortgage Loans; Determination of Excess Proceeds and
                  Realized Losses; Repurchase of Certain Mortgage Loans.........................................104
Section 3.13       Co-Trustee to Cooperate; Release of Mortgage Files............................................108
Section 3.14       Documents, Records and Funds in Possession of Master Servicer to be Held for the
                   Trustee.......................................................................................109
Section 3.15       Servicing Compensation........................................................................110


                                                          i
<PAGE>


Section 3.16       Access to Certain Documentation...............................................................110
Section 3.17       Annual Statement as to Compliance.............................................................110
Section 3.18       [Reserved]....................................................................................111
Section 3.19       [Reserved]....................................................................................111
Section 3.20       Prepayment Charges............................................................................111
Section 3.21       Swap Contract.................................................................................112

                                                      ARTICLE IV.
                                  DISTRIBUTIONS AND ADVANCES BY THE MASTER SERVICER

Section 4.01       Advances; Remittance Reports..................................................................114
Section 4.02       Reduction of Servicing Compensation in Connection with Prepayment Interest Shortfalls.........115
Section 4.03       [Reserved]....................................................................................116
Section 4.04       Distributions.................................................................................116
Section 4.05       Monthly Statements to Certificateholders......................................................123
Section 4.06       Termination of the Mortgage Insurance Policy Issued by Mortgage Guaranty Insurance
                  Corporation...................................................................................124
Section 4.07       Carryover Reserve Fund........................................................................125
Section 4.08       Credit Comeback Excess Account................................................................125
Section 4.09       Swap Trust and Swap Account...................................................................126
Section 4.10       Final Maturity Reserve Trust and Final Maturity Reserve Fund..................................127

                                                     ARTICLE V.
                                                  THE CERTIFICATES

Section 5.01       The Certificates..............................................................................129
Section 5.02       Certificate Register; Registration of Transfer and Exchange of Certificates...................130
Section 5.03       Mutilated, Destroyed, Lost or Stolen Certificates.............................................134
Section 5.04       Persons Deemed Owners.........................................................................135
Section 5.05       Access to List of Certificateholders' Names and Addresses.....................................135
Section 5.06       Book-Entry Certificates.......................................................................135
Section 5.07       Notices to Depository.........................................................................136
Section 5.08       Definitive Certificates.......................................................................136
Section 5.09       Maintenance of Office or Agency...............................................................137

                                                     ARTICLE VI.
                                 THE DEPOSITOR, THE MASTER SERVICER AND THE SELLERS

Section 6.01       Respective Liabilities of the Depositor, the Master Servicer and the Sellers..................137
Section 6.02       Merger or Consolidation of the Depositor, the Master Servicer or the Sellers..................137
Section 6.03       Limitation on Liability of the Depositor, the Sellers, the Master Servicer, the NIM
                  Insurer and Others............................................................................138
Section 6.04       Limitation on Resignation of Master Servicer..................................................139


                                                          ii
<PAGE>


Section 6.05       Errors and Omissions Insurance; Fidelity Bonds................................................139

                                                    ARTICLE VII.
                                       DEFAULT; TERMINATION OF MASTER SERVICER

Section 7.01       Events of Default.............................................................................140
Section 7.02       Trustee to Act; Appointment of Successor......................................................142
Section 7.03       Notification to Certificateholders............................................................143

                                                    ARTICLE VIII.
                                      CONCERNING THE TRUSTEE AND THE CO-TRUSTEE

Section 8.01       Duties of Trustee.............................................................................144
Section 8.02       Certain Matters Affecting the Trustee.........................................................145
Section 8.03        Trustee Not Liable for Mortgage Loans.........................................................147
Section 8.04       Trustee May Own Certificates..................................................................147
Section 8.05       Master Servicer to Pay Trustee's Fees and Expenses............................................147
Section 8.06       Eligibility Requirements for Trustee..........................................................147
Section 8.07       Resignation and Removal of Trustee............................................................148
Section 8.08       Successor Trustee.............................................................................149
Section 8.09       Merger or Consolidation of Trustee............................................................150
Section 8.10       Appointment of Co-Trustee or Separate Trustee.................................................150
Section 8.11       Tax Matters...................................................................................151
Section 8.12       Co-Trustee....................................................................................154
Section 8.13       Access to Records of the Trustee..............................................................157
Section 8.14       Suits for Enforcement.........................................................................158

                                                     ARTICLE IX.
                                                     TERMINATION

Section 9.01       Termination upon Liquidation or Repurchase of all Mortgage Loans..............................158
Section 9.02       Final Distribution on the Certificates........................................................159
Section 9.03       Additional Termination Requirements...........................................................161
Section 9.04       Auction of the Mortgage Loans and REO Properties..............................................162

                                                     ARTICLE X.
                                               MISCELLANEOUS PROVISIONS

Section 10.01      Amendment.....................................................................................165
Section 10.02      Recordation of Agreement; Counterparts........................................................167
Section 10.03      Governing Law.................................................................................167
Section 10.04      Intention of Parties..........................................................................167
Section 10.05      Notices.......................................................................................169
Section 10.06      Severability of Provisions....................................................................170
Section 10.07      Assignment....................................................................................170
Section 10.08      Limitation on Rights of Certificateholders....................................................171
Section 10.09      Inspection and Audit Rights...................................................................171
Section 10.10      Certificates Nonassessable and Fully Paid.....................................................172


                                                         iii
<PAGE>


Section 10.11      Rights of NIM Insurer.........................................................................172

                                                     ARTICLE XI.
                                               EXCHANGE ACT REPORTING

Section 11.01      Filing Obligations............................................................................174
Section 11.02      Form 10-D Filings.............................................................................174
Section 11.03      Form 8-K Filings..............................................................................175
Section 11.04      Form 10-K Filings.............................................................................175
Section 11.05      Sarbanes-Oxley Certification..................................................................176
Section 11.06      Form 15 Filing................................................................................176
Section 11.07      Report on Assessment of Compliance and Attestation............................................177
Section 11.08      Use of Subservicers and Subcontractors........................................................178
Section 11.09      Amendments....................................................................................179
Section 11.10      Reconciliation of Accounts....................................................................179

</TABLE>

Exhibits

EXHIBIT A             Forms of Certificates
  EXHIBIT A-1         Form of Class 1-A Certificate
  EXHIBIT A-2         Form of Class 2-A-1 Certificate
  EXHIBIT A-3         Form of Class 2-A-2 Certificate
  EXHIBIT A-4         Form of Class 2-A-3 Certificate
  EXHIBIT A-5         Form of Class 2-A-4 Certificate
  EXHIBIT A-6         Form of Class M-1 Certificate
  EXHIBIT A-7         Form of Class M-2 Certificate
  EXHIBIT A-8         Form of Class M-3 Certificate
  EXHIBIT A-9         Form of Class M-4 Certificate
  EXHIBIT A-10        Form of Class M-5 Certificate
  EXHIBIT A-11        Form of Class M-6 Certificate
  EXHIBIT A-12        Form of Class M-7 Certificate
  EXHIBIT A-13        Form of Class M-8 Certificate
  EXHIBIT A-14        Form of Class M-9 Certificate
  EXHIBIT A-15        Form of Class B Certificate
  EXHIBIT B           Form of Class P Certificate
  EXHIBIT C           Form of Class C Certificate
  EXHIBIT D           Form of Class A-R Certificate
  EXHIBIT E           Form of Tax Matters Person Certificate
  EXHIBIT F           Mortgage Loan Schedule
  EXHIBIT F-1         List of Mortgage Loans
    EXHIBIT F-2         Mortgage Loans for which All or a Portion of a Related
                        Mortgage File is not Delivered to the Trustee on
                        or prior to the Closing Date
  EXHIBIT G           Forms of Certification of Trustee
  EXHIBIT G-1         Form of Initial Certification of Trustee (Initial
                        Mortgage Loans)
  EXHIBIT G-2         Form of Interim Certification of Trustee
  EXHIBIT G-3         Form of Delay Delivery Certification


                                       iv
<PAGE>


  EXHIBIT G-4         Form of Initial Certification of Trustee (Subsequent
                        Mortgage Loans)
  EXHIBIT H           Form of Final Certification of Trustee
  EXHIBIT I           Transfer Affidavit for Class A-R Certificates
  EXHIBIT J-1         Form of Transferor Certificate for Class A-R Certificates
  EXHIBIT J-2         Form of Transferor Certificate for Private Certificates
  EXHIBIT K           Form of Investment Letter (Non-Rule 144A)
  EXHIBIT L           Form of Rule 144A Letter
  EXHIBIT M           Form of Request for Document Release
  EXHIBIT N           Form of Request for File Release
  EXHIBIT O           Copy of Depository Agreement
  EXHIBIT P           Form of Subsequent Transfer Agreement
  EXHIBIT Q           [Reserved]
EXHIBIT R             [Reserved]
EXHIBIT S-1           [Reserved]
EXHIBIT S-2           [Reserved]
EXHIBIT T             Officer's Certificate with respect to Prepayments
EXHIBIT U             Form of Swap Contract
EXHIBIT V-1           Form of Swap Contract Assignment Agreement
EXHIBIT V-2           Form of Swap Contract Administration Agreement
EXHIBIT W             Form of Monthly Statement
EXHIBIT X-1           Form of Performance Certification (Subservicer)
EXHIBIT X-2           Form of Performance Certification (Trustee)
EXHIBIT Y             Form of Servicing Criteria to be Addressed in Assessment
                        of Compliance Statement
EXHIBIT Z             List of Item 1119 Parties
EXHIBIT AA            Form of Sarbanes-Oxley Certification (Replacement Master
                        Servicer)
SCHEDULE I            Prepayment Charge Schedule and Prepayment Charge Summary
SCHEDULE II           Collateral Schedule
SCHEDULE III          40-Year Target Schedule


                                       v
<PAGE>


          POOLING AND SERVICING AGREEMENT, dated as of October 1, 2006, by and
among CWABS, INC., a Delaware corporation, as depositor (the "Depositor"),
COUNTRYWIDE HOME LOANS, INC., a New York corporation, as seller ("CHL" or a
"Seller"), PARK MONACO INC., a Delaware corporation, as a seller ("Park
Monaco" or a "Seller"), PARK SIENNA LLC, a Delaware limited liability company,
as a seller ("Park Sienna" or a "Seller", and together with CHL and Park
Monaco, the "Sellers"), COUNTRYWIDE HOME LOANS SERVICING LP, a Texas limited
partnership, as master servicer (the "Master Servicer"), THE BANK OF NEW YORK,
a New York banking corporation, as trustee (the "Trustee"), and THE BANK OF
NEW YORK TRUST COMPANY, N.A., a national banking association, as co-trustee
(the "Co-Trustee").

                             PRELIMINARY STATEMENT

          The Depositor is the owner of the Trust Fund that is hereby conveyed
to the Trustee in return for the Certificates. The Trust Fund (excluding the
Credit Comeback Excess Account, the Carryover Reserve Fund and the assets held
in the Pre-Funding Account) for federal income tax purposes will consist of
three REMICs (the "Swap-IO REMIC," the "Strip REMIC" and the "Master REMIC").
Each Certificate, other than the Class A-R Certificate, will represent
ownership of one or more regular interests in the Master REMIC for purposes of
the REMIC Provisions. The Class A-R Certificate represents ownership of the
sole class of residual interest in the Swap-IO REMIC, the Strip REMIC and the
Master REMIC. The Master REMIC will hold as assets the several classes of
uncertificated Strip REMIC Interests (other than the STR-A-R Interest). Each
Strip REMIC Interest (other than the STR-A-R Interest) is hereby designated as
a regular interest in the Strip REMIC. The Strip REMIC will hold as assets the
several classes of uncertificated Swap-IO REMIC Interests (other than the
SWR-A-R Interest). Each Swap-IO REMIC Interest (other than the SWR-A-R
Interest) is hereby designated as a regular interest in the Swap-IO REMIC. The
Swap-IO REMIC will hold as assets all property of the Trust Fund (excluding
the Credit Comeback Excess Account, the Carryover Reserve Fund and the assets
held in the Pre-Funding Account). The latest possible maturity date of all
REMIC regular interests created in this Agreement shall be the Latest Possible
Maturity Date.

          None of the REMICs described herein shall hold any interest in the
Swap Trust, Swap Contract, Swap Account or Final Maturity Reserve Trust.

     SWAP-IO REMIC:

          The Swap-IO REMIC Interests will have the principal balances and
pass-through rates as set forth below.

<TABLE>
<CAPTION>

  Swap-IO REMIC Interest                     Initial Principal Balance(1)             Pass-Through Rate
  ----------------------                     -------------------------                -----------------
        <S>                                     <C>                                        <C>
        SWR-1A                                  $        479,522.00                          (2)
        SWR-1B                                  $        479,522.00                         (3)
        SWR-2A                                  $        764,421.00                         (2)
        SWR-2B                                   $        764,421.00                         (3)
        SWR-3A                                  $        842,438.50                         (2)
        SWR-3B                                  $        842,438.50                         (3)
        SWR-4A                                   $      1,043,826.50                         (2)


                                                1
<PAGE>


  Swap-IO REMIC Interest                     Initial Principal Balance(1)             Pass-Through Rate
  ----------------------                     -------------------------                -----------------
        SWR-4B                                  $      1,043,826.50                         (3)
        SWR-5A                                  $      1,495,907.50                          (2)
        SWR-5B                                  $      1,495,907.50                         (3)
        SWR-6A                                  $      1,684,353.50                         (2)
        SWR-6B                                  $      1,684,353.50                         (3)
        SWR-7A                                  $      1,949,402.50                         (2)
        SWR-7B                                  $      1,949,402.50                         (3)
        SWR-8A                                   $      2,123,270.50                         (2)
        SWR-8B                                  $      2,123,270.50                         (3)
        SWR-9A                                  $      2,399,399.50                         (2)
        SWR-9B                                  $      2,399,399.50                         (3)
        SWR-10A                                 $      2,566,706.50                         (2)
        SWR-10B                                 $      2,566,706.50                          (3)
        SWR-11A                                 $      2,673,271.50                         (2)
        SWR-11B                                 $      2,673,271.50                         (3)
        SWR-12A                                 $      3,103,787.00                         (2)
        SWR-12B                                 $      3,103,787.00                         (3)
        SWR-13A                                 $      2,772,963.50                         (2)
        SWR-13B                                  $      2,772,963.50                         (3)
        SWR-14A                                 $      2,926,637.50                         (2)
        SWR-14B                                 $      2,926,637.50                         (3)
        SWR-15A                                 $      2,273,730.50                         (2)
        SWR-15B                                 $      2,273,730.50                         (3)
        SWR-16A                                 $      2,149,282.50                          (2)
        SWR-16B                                 $      2,149,282.50                         (3)
        SWR-17A                                 $      2,461,507.50                         (2)
        SWR-17B                                 $      2,461,507.50                         (3)
        SWR-18A                                 $      2,265,476.00                         (2)
        SWR-18B                                 $      2,265,476.00                         (3)
        SWR-19A                                  $      2,227,030.50                         (2)
        SWR-19B                                 $      2,227,030.50                         (3)
        SWR-20A                                 $      2,096,234.50                         (2)
        SWR-20B                                  $      2,096,234.50                         (3)
        SWR-21A                                 $      2,106,837.00                         (2)
        SWR-21B                                 $      2,106,837.00                          (3)
        SWR-22A                                 $      2,134,307.00                         (2)
        SWR-22B                                 $      2,134,307.00                         (3)
        SWR-23A                                 $      2,043,904.00                         (2)
        SWR-23B                                 $      2,043,904.00                         (3)
        SWR-24A                                 $      2,045,418.00                         (2)
        SWR-24B                                  $      2,045,418.00                         (3)
        SWR-25A                                 $      1,802,309.00                         (2)
        SWR-25B                                 $      1,802,309.00                         (3)
        SWR-26A                                  $      1,837,455.00                         (2)
        SWR-26B                                 $      1,837,455.00                         (3)


                                                2
<PAGE>


  Swap-IO REMIC Interest                      Initial Principal Balance(1)             Pass-Through Rate
  ----------------------                     -------------------------                -----------------
        SWR-27A                                 $      1,424,357.00                          (2)
        SWR-27B                                 $      1,424,357.00                         (3)
        SWR-28A                                 $      1,336,117.50                         (2)
        SWR-28B                                 $      1,336,117.50                         (3)
        SWR-29A                                 $      1,529,570.00                         (2)
        SWR-29B                                 $      1,529,570.00                         (3)
        SWR-30A                                  $      1,416,116.50                         (2)
        SWR-30B                                 $      1,416,116.50                         (3)
        SWR-31A                                 $      1,386,616.50                         (2)
        SWR-31B                                 $      1,386,616.50                         (3)
        SWR-32A                                 $      1,323,846.50                         (2)
        SWR-32B                                 $      1,323,846.50                          (3)
        SWR-33A                                 $      1,372,768.00                         (2)
        SWR-33B                                 $      1,372,768.00                         (3)
        SWR-34A                                 $      1,405,010.00                         (2)
        SWR-34B                                 $      1,405,010.00                         (3)
        SWR-35A                                 $      1,409,484.50                         (2)
        SWR-35B                                  $      1,409,484.50                         (3)
        SWR-36A                                 $      1,440,716.00                         (2)
        SWR-36B                                 $      1,440,716.00                         (3)
        SWR-37A                                 $      1,272,883.00                         (2)
        SWR-37B                                 $      1,272,883.00                         (3)
        SWR-38A                                 $      1,328,356.50                          (2)
        SWR-38B                                 $      1,328,356.50                         (3)
        SWR-39A                                 $      1,045,245.50                         (2)
        SWR-39B                                 $      1,045,245.50                         (3)
        SWR-40A                                 $      1,007,080.50                         (2)
        SWR-40B                                 $      1,007,080.50                         (3)
        SWR-41A                                  $      1,199,350.00                         (2)
        SWR-41B                                 $      1,199,350.00                         (3)
        SWR-42A                                 $      1,153,506.00                         (2)
        SWR-42B                                 $      1,153,506.00                         (3)
        SWR-43A                                 $      1,161,454.00                         (2)
        SWR-43B                                 $      1,161,454.00                          (3)
        SWR-44A                                 $      1,116,790.00                         (2)
        SWR-44B                                 $      1,116,790.00                         (3)
        SWR-45A                                 $      1,127,597.50                         (2)
        SWR-45B                                 $      1,127,597.50                         (3)
        SWR-46A                                 $      1,086,388.50                         (2)
        SWR-46B                                  $      1,086,388.50                         (3)
        SWR-47A                                 $        985,985.50                         (2)
        SWR-47B                                 $        985,985.50                         (3)
        SWR-48A                                 $      1,030,132.50                         (2)
        SWR-48B                                 $      1,030,132.50                         (3)
        SWR-49A                                 $        934,629.00                          (2)


                                                3
<PAGE>


  Swap-IO REMIC Interest                     Initial Principal Balance(1)             Pass-Through Rate
  ----------------------                     -------------------------                -----------------
        SWR-49B                                 $        934,629.00                         (3)
        SWR-50A                                 $        998,337.00                         (2)
        SWR-50B                                 $        998,337.00                         (3)
        SWR-51A                                 $        805,408.00                         (2)
        SWR-51B                                 $        805,408.00                         (3)
        SWR-52A                                  $        785,581.00                         (2)
        SWR-52B                                 $        785,581.00                         (3)
        SWR-53A                                 $        922,520.00                         (2)
        SWR-53B                                 $        922,520.00                         (3)
        SWR-54A                                 $        872,501.00                         (2)
        SWR-54B                                 $        872,501.00                          (3)
        SWR-55A                                 $        866,467.00                         (2)
        SWR-55B                                 $        866,467.00                         (3)
        SWR-56A                                 $        844,042.50                         (2)
        SWR-56B                                 $        844,042.50                         (3)
        SWR-57A                                 $        844,157.50                         (2)
        SWR-57B                                  $        844,157.50                         (3)
        SWR-58A                                 $        897,389.50                         (2)
        SWR-58B                                 $        897,389.50                         (3)
        SWR-59A                                 $      1,167,534.00                         (2)
        SWR-59B                                 $      1,167,534.00                         (3)
        SWR-60A                                 $      1,132,428.50                          (2)
        SWR-60B                                 $      1,132,428.50                         (3)
        SWR-61A                                 $        956,726.50                         (2)
        SWR-61B                                 $        956,726.50                         (3)
        SWR-62A                                 $        944,927.50                         (2)
        SWR-62B                                 $        944,927.50                         (3)
        SWR-63A                                  $        713,739.00                         (2)
        SWR-63B                                 $        713,739.00                         (3)
        SWR-64A                                 $        765,946.00                         (2)
        SWR-64B                                 $        765,946.00                         (3)
        SWR-65A                                 $        859,318.50                         (2)
        SWR-65B                                 $        859,318.50                          (3)
        SWR-66A                                 $        781,764.50                         (2)
        SWR-66B                                 $        781,764.50                         (3)
        SWR-67A                                 $        786,309.00                         (2)
        SWR-67B                                 $        786,309.00                         (3)
        SWR-68A                                 $        758,013.00                         (2)
        SWR-68B                                  $        758,013.00                         (3)
        SWR-69A                                 $        763,959.50                         (2)
        SWR-69B                                 $        763,959.50                         (3)
        SWR-70A                                 $        736,497.50                         (2)
        SWR-70B                                 $        736,497.50                         (3)
        SWR-71A                                 $        678,397.50                          (2)
        SWR-71B                                 $        678,397.50                         (3)


                                                4
<PAGE>


  Swap-IO REMIC Interest                     Initial Principal Balance(1)             Pass-Through Rate
  ----------------------                     -------------------------                -----------------
        SWR-72A                                 $     46,108,460.50                         (2)
        SWR-72B                                 $     46,108,460.50                         (3)
        SWR-Support                                            (4)                         (5)
        SWR-P                                   $            100.00                         (6)
        SWR-40 Year Reserve                                     (7)                         (7)
        SW-A-R                                                 (8)                         (8)

</TABLE>

---------------------------
(1)   Scheduled principal, prepayments and Realized Losses will be allocated
     first, to the SWR-Support Interest and second, to the numbered classes
     sequentially (from lowest to highest). Amounts so allocated to a numbered
     class shall be further allocated among the "A" and "B" components of such
     numbered class pro-rata until the entire class is reduced to zero.

(2)   Prior to the 73rd Distribution Date, a rate equal to twice the Pool Tax
     Cap less 10.80% per annum. On and after the 73rd Distribution Date a rate
     equal to the Pool Tax Cap. The "Pool Tax Cap" means the weighted average
     of the Adjusted Net Mortgage Rates of all the Mortgage Loans. For this
     purpose, beginning on the Distribution Date in November 2016 and ending
     on the Last Scheduled Distribution Date, the Adjusted Net Mortgage Rate
     shall be determined by first reducing the interest payable on each
     40-Year Mortgage Loan by the 40-Year Reserve Rate.

(3)   Prior to the 73rd Distribution Date, a rate equal to the lesser of (i)
     10.80% per annum and (ii) twice the Pool Tax Cap. On and after the 73rd
     Distribution Date, a rate equal to the Pool Tax Cap.

(4)   On the Closing Date and on each Distribution Date, following the
     allocation of Principal Amounts and Realized Losses, the principal
     balance in respect of the SWR-Support Interest will equal the excess of
     (a) the sum of (i) the principal balance of the Mortgage Loans (as of the
     end of the related Due Period, reduced by principal prepayments received
     after such Due Period that are to be distributed on such Distribution
     Date) and (ii) the amount, if any, on deposit in the Pre-Funding Account
     in respect of the Mortgage Loans over (b) the principal balance in
     respect of the remaining Swap-IO REMIC Interests other than the SWR-P and
     the SWR-A-R Interests.

(5)   A rate equal to the Pool Tax Cap.

(6)   On each Distribution Date the Class SWR-P Interest is entitled to all
     Prepayment Charges collected with respect to the Mortgage Loans. It pays
     no interest.

(7)   Beginning on the Distribution Date in November 2016 and ending on the
     Distribution in October 2036 (the "Last Scheduled Distribution Date"),
     the SW-40 Year Reserve Interest shall be entitled to a specific portion
     of the interest payable on each 40-Year Mortgage Loan. Specifically, the
     SW-40 Year Reserve Interest shall be entitled to a specific portion of
     the interest payable on the Stated Principal Balance of each 40-Year
     Mortgage Loan as of the Due Date in the month preceding the month of that
     Distribution Date (after giving effect to principal prepayments in the
     Prepayment Period related to that prior Due Date) at a per annum rate
     equal to 0.80% (the "40-Year Reserve Rate").

(8)   The Class SW-A-R Interest is the sole class of residual interest in the
     Swap-IO REMIC. It has no principal and pays no principal or interest.


                                      5
<PAGE>


          On each Distribution Date, the Interest Funds and the Principal
Distribution Amount payable with respect to the Mortgage Loans shall be
payable with respect to the Swap-IO REMIC Interests in the following manner:

          (1) Interest. Interest is to be distributed with respect to each
Swap-IO REMIC Interest at the rate, or according to the formulas, described
above.

          (2) Principal. Principal Distribution Amounts shall be allocated
among the Swap-IO REMIC Interests as described above.

          (3) Prepayment Penalties. All Prepayment Charges are allocated to
the SWR-P Interest.

          STRIP REMIC:

          The Strip REMIC Regular Interests will have the principal balances,
pass-through rates and Corresponding Classes of Certificates as set forth in
the following table:

<TABLE>
<CAPTION>

------------------------------- ---------------------------- ---------------------------- ----------------------------
          Strip REMIC                 Initial Principal                Pass-Through               Corresponding Class
            Interest                       Balance                        Rate                      of Certificates
------------------------------- ---------------------------- ---------------------------- ----------------------------
<S>                                         <C>                             <C>                          <C>
STR-1-A.......................               (1)                           (2)                           1-A
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-2-A-1.....................               (1)                           (2)                          2-A-1
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-2-A-2.....................               (1)                           (2)                          2-A-2
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-2-A-3.....................               (1)                            (2)                          2-A-3
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-2-A-4.....................               (1)                           (2)                           2-A-4
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-1.......................               (1)                           (2)                           M-1
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-2.......................               (1)                           (2)                           M-2
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-3.......................               (1)                           (2)                           M-3
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-4.......................               (1)                           (2)                           M-4
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-5.......................               (1)                           (2)                           M-5
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-6.......................               (1)                           (2)                           M-6
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-7.......................                (1)                           (2)                           M-7
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-8.......................               (1)                           (2)                           M-8
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-M-9.......................               (1)                           (2)                           M-9
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-B.........................               (1)                           (2)                            B
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-$100......................              $100                           (3)                           A-R
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-C-OC......................               (4)                           (2)                           N/A
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-C-Swap-IO                                (5)                           (5)                           N/A
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-C-40 Year IO                             (6)                           (6)                           N/A
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-P.........................               $100                           (7)                            P
------------------------------- ---------------------------- ---------------------------- ----------------------------
STR-A-R.......................               (8)                            (8)                           N/A
------------------------------- ---------------------------- ---------------------------- ----------------------------

------------------------------- ---------------------------- ---------------------------- ----------------------------

</TABLE>

(1) This Strip REMIC Interest has a principal balance that is initially equal
to 100% of its Corresponding Certificate Class issued by the Master REMIC.
Principal payments, both scheduled and prepaid, Realized Losses and Subsequent
Recoveries attributable to the Swap-IO REMIC Interests held by the Strip REMIC
will be allocated to this class to maintain its size relative to its
Corresponding Certificate Class.


                                      6
<PAGE>


(2) On each Distribution Date, the pass-through rate for this Strip REMIC
Interest will be the "Strip REMIC Cap," which will equal the weighted average
of the pass-through rates of the Swap-IO REMIC Interests (other than the Class
SWR-P and Class SWR-A-R Interests) treating each "B" Interest the cardinal
number of which (for example, SW-1B, SW-2B, SW-3B, etc.) is not less than the
ordinal number of the Distribution Date (first Distribution Date, second
Distribution Date, third Distribution Date, etc.) as capped at a rate equal to
the product of (i) 2 and (ii) LIBOR.

(3) This Strip REMIC Interest pays no interest.

(4) This Strip REMIC Interest has a principal balance that is initially equal
to 100% of the Overcollateralized Amount. Principal payments, both scheduled
and prepaid, Realized Losses and Subsequent Recoveries attributable to the
Swap-IO REMIC Interests held by the Strip REMIC will be allocated to this
class to maintain its size relative to the Overcollateralized Amount.

(5) For each Distribution Date, the STR-C-Swap-IO Interest is entitled to
receive from each Swap REMIC "B" Interest the cardinal number of which (for
example, SW-1B, SW-2B, SW-3B, etc.) is not less than the ordinal number of the
Distribution Date (first Distribution Date, second Distribution Date, third
Distribution Date, etc. ) the interest accruing on such interest in excess of
a per annum rate equal to the product of (i) 2 and (ii) LIBOR.

(6) The STR-C-40 Year IO is entitled to all amounts payable with respect to
the SWR-40 Year Reserve Interest.

(7) The STR-P Interest is entitled to all amounts payable with respect to the
SWR-P Interest. It pays no interest.

(8) The STR-A-R Interest is the sole class of residual interest in the Strip
REMIC. It has no principal balance and pays no principal or interest.

     On each Distribution Date, the Interest Funds and the Principal
Distribution Amount payable with respect to the Swap-IO Interests shall be
payable with respect to the Strip REMIC Interests in the following manner:

     (1) Interest. Interest is to be distributed with respect to each Strip
REMIC Interest at the rate, or according to the formulas, described above.

     (2) Principal. Principal Distribution Amounts shall be allocated among
the Strip REMIC Interests as described above.

      (3) Prepayment Penalties. All Prepayment Charges are allocated to the
STR-P Interest.


                                      7
<PAGE>


     MASTER REMIC:

          The following table specifies the class designation, interest rate,
and principal amount for each class of Master REMIC Interest:

                                Original Certificate      
Class                              Principal Balance         Pass-Through Rate
----------------------------- ------------------------   -----------------------
Class 1-A....................          $292,425,000                  (1)
Class 2-A-1..................          $232,258,000                  (1)
Class 2-A-2..................           $61,748,000                  (1)
Class 2-A-3..................          $176,730,000                  (1)
Class-2-A-4..................           $72,339,000                  (1)
Class M-1....................           $32,000,000                  (1)
Class M-2....................           $29,000,000                  (1)
Class M-3....................           $16,500,000                  (1)
Class M-4....................           $14,500,000                  (1)
Class M-5....................           $14,000,000                  (1)
Class M-6....................           $10,500,000                   (1)
Class M-7....................            $9,500,000                  (1)
Class M-8....................            $7,500,000                  (1)
Class M-9....................            $7,000,000                  (1)
Class B......................            $6,500,000                  (1)
Class C......................           (2)                          (3)
Class P......................                  $100                  (4)
Class A-R....................                  $100                  (5)

(1)   The Certificates will accrue interest at the related Pass-Through Rates
     identified in this Agreement. For federal income tax purposes, including
     the computation of the Class C Distributable Amount and entitlement to
     Net Rate Carryover the pass-through rate in respect of each Class 1-A
     Certificate, Class 2-A Certificate, Class M Certificate and Class B
     Certificate will be subject to a cap equal to the Strip REMIC Cap rather
     than its applicable Net Rate Cap.
(2)   For federal income tax purposes, the Class C Certificates will be treated
     as having a Certificate Principal Balance equal to the Overcollateralized
     Amount.
(3)   For each Interest Accrual Period the Class C Certificates are entitled to
     an amount (the "Class C Distributable Amount") equal to the sum of (a)
     the interest payable on the STR-C-Swap-IO Interest, (b) the interest
     payable on the STR-C-OC Interest (c) the interest payable on the STR-C-40
     Year IO and (d) a specified portion of the interest payable on the Strip
     REMIC Regular Interests (other than the STR-$100, STR-C-OC,
     STR-C-Swap-IO, STR-C-40 Year IO and STR-P Interests) equal to the excess
     of the Strip REMIC Cap over the weighted average interest rate of the
     Strip REMIC Regular Interests (other than the STR-$100, STR-C-OC,
     STR-C-Swap-IO, STR-C-40 Year IO and STR-P Interests) with each such Class
     subject to a cap equal to the Pass-Through Rate of the Corresponding
     Master REMIC Class. The Pass-Through Rate of the Class C Certificates
     shall be a rate sufficient to entitle it to an amount equal to all
     interest accrued on the Mortgage Loans less the interest accrued on the
     other interests issued by the Master REMIC. The Class C Distributable
     Amount for any Distribution Date is payable from


                                      8
<PAGE>


     current interest on the Mortgage Loans and any related
     Overcollateralization Reduction Amount for that Distribution Date.
(4)   For each Distribution Date the Class P Certificates are entitled to all
     Prepayment Charges distributed with respect to the STR-P Interest.
(5)   The Class A-R Certificates represent the sole class of residual interest
     in each REMIC created hereunder. The Class A-R Certificates are not
     entitled to distributions of interest.

          The foregoing REMIC structure is intended to cause all of the cash
from the Mortgage Loans to flow through to the Master REMIC as cash flow on
REMIC regular interests, without creating any shortfall--actual or potential
(other than for credit losses)-- to any REMIC regular interest. It is not
intended that the Class A-R Certificates be entitled to any cash flows
pursuant to this Agreement except as provided in Section 3.08(a) hereunder.


                                      9
<PAGE>


                                  ARTICLE I.

                                  DEFINITIONS

          Section 1.01 Defined Terms.

          Whenever used in this Agreement, the following words and phrases,
unless the context otherwise requires, shall have the following meanings:

          40-Year Target Schedule: Schedule III hereto.

          40-Year Mortgage Loan: A Mortgage Loan with an original term to
maturity of 40 years.

          40-Year Reserve Rate: As defined in the Preliminary Statement.

          Acceptable Bid Amount: Either (i) a bid equal to or greater than the
Minimum Auction Amount or (ii) the highest bid submitted by a Qualified Bidder
in an auction if the Directing Certificateholder agrees to pay the related
Auction Supplement Amount.

          Account: Any Escrow Account, the Carryover Reserve Fund, the
Certificate Account, the Credit Comeback Excess Account, the Distribution
Account, the Pre-Funding Account, the Principal Reserve Fund, the Swap
Account, the Final Maturity Reserve Fund or any other account related to the
Trust Fund or the Mortgage Loans.

          Accrual Period: With respect to any Distribution Date and each Class
of Interest-Bearing Certificates, the period commencing on the immediately
preceding Distribution Date (or, in the case of the first Distribution Date,
the Closing Date) and ending on the day immediately preceding such
Distribution Date. With respect to any Distribution Date and the Class C
Certificates, the calendar month preceding the month in which such
Distribution Date occurs. All calculations of interest on the Interest-Bearing
Certificates will be made on the basis of the actual number of days elapsed in
the related Accrual Period and on a 360-day year. All calculations of interest
on the Class C Certificates will be made on the basis of a 360-day year
consisting of twelve 30-day months.

          Additional Designated Information: As defined in Section 11.02.

          Adjustable Rate Mortgage Loans: The Mortgage Loans identified in the
Mortgage Loan Schedule as having a Mortgage Rate which is adjustable in
accordance with the terms of the related Mortgage Note.

          Adjusted Net Mortgage Rate: As to each Mortgage Loan, the Mortgage
Rate less the related Expense Fee Rate.

          Adjusted Replacement Upfront Amount: As defined in Section 3.21.

          Adjustment Date: As to each Adjustable Rate Mortgage Loan, each date
on which the related Mortgage Rate is subject to adjustment, as provided in
the related Mortgage Note.


                                      10
<PAGE>


          Advance: The aggregate of the advances required to be made by the
Master Servicer with respect to any Distribution Date pursuant to Section
4.01, the amount of any such advances being equal to the aggregate of payments
of principal of, and interest on the Stated Principal Balance of, the Mortgage
Loans (net of the Servicing Fees) that were due on the related Due Date and
not received by the Master Servicer as of the close of business on the related
Determination Date including an amount equivalent to interest on the Stated
Principal Balance of each Mortgage Loan as to which the related Mortgaged
Property is an REO Property or as to which the related Mortgaged Property has
been liquidated but such Mortgage Loan has not yet become a Liquidated
Mortgage Loan; provided, however, that the net monthly rental income (if any)
from such REO Property deposited in the Certificate Account for such
Distribution Date pursuant to Section 3.12 may be used to offset such Advance
for the related REO Property; provided, further, that for the avoidance of
doubt, no Advances shall be required to be made in respect of any Liquidated
Mortgage Loan.

          Agreement: This Pooling and Servicing Agreement and any and all
amendments or supplements hereto made in accordance with the terms herein.

          Amount Held for Future Distribution: As to any Distribution Date,
the aggregate amount held in the Certificate Account at the close of business
on the immediately preceding Determination Date on account of (i) all
Scheduled Payments or portions thereof received in respect of the Mortgage
Loans due after the related Due Date, (ii) Principal Prepayments received in
respect of such Mortgage Loans after the last day of the related Prepayment
Period and (iii) Liquidation Proceeds and Subsequent Recoveries received in
respect of such Mortgage Loans after the last day of the related Due Period.

          Applied Realized Loss Amount: With respect to any Distribution Date
and any Loan Group or Loan Groups, the amount, if any, by which, the aggregate
Certificate Principal Balance of the Class(es) of Certificates listed opposite
such Loan Group(s) in the following table (after all distributions of
principal on such Distribution Date) exceeds the sum of (x) the aggregate
Stated Principal Balance of the Mortgage Loans in such Loan Group(s) for such
Distribution Date and (y) the amount on deposit in the Pre-Funding Account in
respect of such Loan Group(s); provided, however, that an Applied Realized
Loss Amount will not exist for a Class of Class A Certificates unless the
Certificate Principal Balances of the Subordinate Certificates have been
reduced to zero.

             Loan Group(s)                     Class(es) of Certificates

                1 and 2                            Interest-Bearing
                   1                                     1-A
                   2                                     2-A

          Appraised Value: The appraised value of the Mortgaged Property based
upon the appraisal made for the originator of the related Mortgage Loan by an
independent fee appraiser at the time of the origination of the related
Mortgage Loan, or the sales price of the Mortgaged Property at the time of
such origination, whichever is less, or with respect to any Mortgage Loan
originated in connection with a refinancing, the appraised value of the
Mortgaged Property based upon the appraisal made at the time of such
refinancing.


                                       11
<PAGE>


          Auction Supplement Amount: As defined in Section 9.04(c).

          Bankruptcy Code: Title 11 of the United States Code.

          Bid Date: As defined in Section 9.04(b).

          Book-Entry Certificates: Any of the Certificates that shall be
registered in the name of the Depository or its nominee, the ownership of
which is reflected on the books of the Depository or on the books of a person
maintaining an account with the Depository (directly, as a "Depository
Participant", or indirectly, as an indirect participant in accordance with the
rules of the Depository and as described in Section 5.06). As of the Closing
Date, each Class of Interest-Bearing Certificates constitutes a Class of
Book-Entry Certificates.

          Business Day: Any day other than (i) a Saturday or a Sunday or (ii)
a day on which banking institutions in the State of New York or California or
the city in which the Corporate Trust Office of the Trustee is located are
authorized or obligated by law or executive order to be closed.

          Carryover Reserve Fund: The separate Eligible Account created and
initially maintained by the Trustee pursuant to Section 4.07 in the name of
the Trustee for the benefit of the Certificateholders and designated "The Bank
of New York in trust for registered Holders of CWABS, Inc., Asset-Backed
Certificates, Series 2006-20". Funds in the Carryover Reserve Fund shall be
held in trust for the Certificateholders for the uses and purposes set forth
in this Agreement.

          Certificate: Any one of the certificates of any Class executed and
authenticated by the Trustee in substantially the forms attached hereto as
Exhibits A-1 through A-15, Exhibit B, Exhibit C, Exhibit D and Exhibit E.

           Certificate Account: The separate Eligible Account created and
initially maintained by the Master Servicer pursuant to Section 3.05(b) with a
depository institution in the name of the Master Servicer for the benefit of
the Trustee on behalf of the Certificateholders and designated "Countrywide
Home Loans Servicing LP in trust for registered Holders of CWABS, Inc.,
Asset-Backed Certificates, Series 2006-20". Funds in the Certificate Account
shall be held in trust for the Certificateholders for the uses and purposes
set forth in this Agreement.

          Certificate Owner: With respect to a Book-Entry Certificate, the
person that is the beneficial owner of such Book-Entry Certificate.

          Certificate Principal Balance: As to any Certificate (other than the
Class C Certificates) and as of any Distribution Date, the Initial Certificate
Principal Balance of such Certificate (A) less the sum of (i) all amounts
distributed with respect to such Certificate in reduction of the Certificate
Principal Balance thereof on previous Distribution Dates pursuant to Section
4.04(b) and (ii) any Applied Realized Loss Amounts allocated to such
Certificate on previous Distribution Dates pursuant to Section 4.04(g), and
(B) increased by any Subsequent Recoveries allocated to such Certificate
pursuant to Section 4.04(h) on such Distribution Date. References herein to
the Certificate Principal Balance of a Class of Certificates shall mean the
Certificate Principal Balances of all Certificates in such Class. The Class C
Certificates do not


                                      12
<PAGE>


have a Certificate Principal Balance. With respect to any Certificate (other
than the Class C Certificates) of a Class and any Distribution Date, the
portion of the Certificate Principal Balance of such Class represented by such
Certificate equal to the product of the Percentage Interest evidenced by such
Certificate and the Certificate Principal Balance of such Class.

          Certificate Register: The register maintained pursuant to Section
5.02 hereof.

          Certificateholder or Holder: The person in whose name a Certificate
is registered in the Certificate Register (initially, Cede & Co., as nominee
for the Depository, in the case of any Class of Book-Entry Certificates),
except that solely for the purpose of giving any consent pursuant to this
Agreement, any Certificate registered in the name of the Depositor or any
affiliate of the Depositor shall be deemed not to be Outstanding and the
Voting Interest evidenced thereby shall not be taken into account in
determining whether the requisite amount of Voting Interests necessary to
effect such consent has been obtained; provided that if any such Person
(including the Depositor) owns 100% of the Voting Interests evidenced by a
Class of Certificates, such Certificates shall be deemed to be Outstanding for
purposes of any provision hereof (other than the second sentence of Section
10.01 hereof) that requires the consent of the Holders of Certificates of a
particular Class as a condition to the taking of any action hereunder. The
Trustee is entitled to rely conclusively on a certification of the Depositor
or any affiliate of the Depositor in determining which Certificates are
registered in the name of an affiliate of the Depositor.

          Certification Party: As defined in Section 11.05.

          Certifying Person: As defined in Section 11.05.

          CHL: Countrywide Home Loans, Inc., a New York corporation, and its
successors and assigns.

          CHL Mortgage Loans: The Mortgage Loans identified as such on the
Mortgage Loan Schedule for which CHL is the applicable Seller.

          Class: All Certificates bearing the same Class designation as set
forth in Section 5.01 hereof.

          Class 1-A Certificate: Any Certificate designated as a "Class 1-A
Certificate" on the face thereof, in the form of Exhibit A-1 hereto,
representing the right to distributions as set forth herein.

          Class 1-A Net Rate Cap: For any Distribution Date, the weighted
average Adjusted Net Mortgage Rate of the Mortgage Loans in Loan Group 1 as of
the first day of the related Due Period (after giving effect to Principal
Prepayments received during the Prepayment Period that ends during such Due
Period), adjusted to an effective rate reflecting the calculation of interest
on the basis of the actual number of days elapsed during the related Accrual
Period and a 360-day year, minus a fraction, expressed as a percentage, the
numerator of which is (a) the product of (x) the sum of (1) the sum of the Net
Swap Payment payable to the Swap Counterparty with respect to such
Distribution Date and the Final Maturity Reserve Deposit for such Distribution
Date times a fraction, the numerator of which is equal to 360 and the


                                      13
<PAGE>


denominator of which is equal to the actual number of days in the related
Accrual Period and (2) any Swap Termination Payment payable to the Swap
Counterparty for such Distribution Date (other than a Swap Termination Payment
due to a Swap Counterparty Trigger Event) and (y) a fraction, the numerator of
which is the Interest Funds for Loan Group 1 for such Distribution Date, and
the denominator of which is the Interest Funds for Loan Group 1 and Loan Group
2 for such Distribution Date, and the denominator of which is (b) the sum of
the aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 1
as of the first day of the related Due Period (after giving effect to
Principal Prepayments received during the Prepayment Period that ends during
such Due Period) plus any amounts on deposit in the Pre-Funding Account in
respect of Loan Group 1 as of the first day of that Due Period.

          Class 1-A Principal Distribution Amount: With respect to any
Distribution Date, the product of (x) the Class A Principal Distribution
Target Amount and (y) a fraction, the numerator of which is the Class 1-A
Principal Distribution Target Amount and the denominator of which is the sum
of the Class 1-A Principal Distribution Target Amount and the Class 2-A
Principal Distribution Target Amount.

          Class 1-A Principal Distribution Target Amount: With respect to any
Distribution Date, the excess of (1) the Certificate Principal Balance of the
Class 1-A Certificates immediately prior to such Distribution Date, over (2)
the lesser of (x) 67.10% of the aggregate Stated Principal Balance of the
Mortgage Loans in Loan Group 1 for such Distribution Date and (y) the
aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 1 for
such Distribution Date minus 0.50% of the sum of the aggregate Cut-off Date
Principal Balance of the Initial Mortgage Loans in Loan Group 1 and the
original Group 1 Pre-Funded Amount.

          Class 2-A-1 Certificate: Any Certificate designated as a "Class
2-A-1 Certificate" on the face thereof, in the form of Exhibit A-2 hereto,
representing the right to distributions as set forth herein.

          Class 2-A-2 Certificate: Any Certificate designated as a "Class
2-A-2 Certificate" on the face thereof, in the form of Exhibit A-3 hereto,
representing the right to distributions as set forth herein.

          Class 2-A-3 Certificate: Any Certificate designated as a "Class
2-A-3 Certificate" on the face thereof, in the form of Exhibit A-4 hereto,
representing the right to distributions as set forth herein.

          Class 2-A-4 Certificate: Any Certificate designated as a "Class
2-A-4 Certificate" on the face thereof, in the form of Exhibit A-5 hereto,
representing the right to distributions as set forth herein.

          Class 2-A Certificate: Any Class 2-A-1, Class 2-A-2, Class 2-A-3 or
Class 2-A-4 Certificate.

          Class 2-A Net Rate Cap: For any Distribution Date, the weighted
average Adjusted Net Mortgage Rate of the Mortgage Loans in Loan Group 2 as of
the first day of the related Due Period (after giving effect to Principal
Prepayments received during the Prepayment Period that ends during such Due
Period), adjusted to an effective rate reflecting the calculation


                                      14
<PAGE>


of interest on the basis of the actual number of days elapsed during the
related Accrual Period and a 360-day year, minus a fraction, expressed as a
percentage, the numerator of which is (a) the product of (x) the sum of (1)
the sum of the Net Swap Payment payable to the Swap Counterparty with respect
to such Distribution Date and the Final Maturity Reserve Deposit for such
Distribution Date times a fraction, the numerator of which is equal to 360 and
the denominator of which is equal to the actual number of days in the related
Accrual Period and (2) any Swap Termination Payment payable to the Swap
Counterparty for such Distribution Date (other than a Swap Termination Payment
due to a Swap Counterparty Trigger Event) and (y) a fraction, the numerator of
which is the Interest Funds for Loan Group 2 for such Distribution Date, and
the denominator of which is the Interest Funds for Loan Group 1 and Loan Group
2 for such Distribution Date, and the denominator of which is (b) the sum of
the aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 2
as of the first day of the related Due Period (after giving effect to
Principal Prepayments received during the Prepayment Period that ends during
such Due Period) plus any amounts on deposit in the Pre-Funding Account in
respect of Loan Group 2 as of the first day of that Due Period.

          Class 2-A Principal Distribution Amount: With respect to any
Distribution Date, the product of (x) the Class A Principal Distribution
Target Amount and (y) a fraction, the numerator of which is the Class 2-A
Principal Distribution Target Amount and the denominator of which is the sum
of the Class 1-A Principal Distribution Target Amount and the Class 2-A
Principal Distribution Target Amount.

          Class 2-A Principal Distribution Target Amount: With respect to any
Distribution Date, the excess of (1) the aggregate Certificate Principal
Balance of the Class 2-A Certificates immediately prior to such Distribution
Date, over (2) the lesser of (i) 67.10% of the aggregate Stated Principal
Balance of the Mortgage Loans in Loan Group 2 for such Distribution Date and
(ii) the aggregate Stated Principal Balance of the Mortgage Loans in Loan
Group 2 for such Distribution Date minus 0.50% of the sum of the aggregate
Cut-off Date Principal Balance of the Initial Mortgage Loans in Loan Group 2
and the original Group 2 Pre-Funded Amount.

          Class A-R Certificate: Any Certificate designated as a "Class A-R
Certificate" on the face thereof, in the form of Exhibit D hereto or, in the
case of the Tax Matters Person Certificate, Exhibit E hereto, in either case
representing the right to distributions as set forth herein.

          Class A Certificate: Any Class 1-A or Class 2-A Certificate.

          Class A Principal Distribution Allocation Amount: With respect to
any Distribution Date (a) in the case of the Class 1-A Certificates, the Class
1-A Principal Distribution Amount and (b) in the case of the Class 2-A
Certificates, the Class 2-A Principal Distribution Amount.

           Class A Principal Distribution Target Amount: With respect to any
Distribution Date, the excess of (1) the aggregate Certificate Principal
Balance of the Class A Certificates immediately prior to such Distribution
Date, over (2) the lesser of (x) 67.10% of the aggregate Stated Principal
Balance of the Mortgage Loans for such Distribution Date and (y) the aggregate
Stated Principal Balance of the Mortgage Loans for such Distribution Date
minus the OC Floor.


                                      15
<PAGE>


          Class B Certificate: Any Certificate designated as a "Class B
Certificate" on the face thereof, in the form of Exhibit A-15 hereto,
representing the right to distributions as set forth herein.

          Class C Certificate: Any Certificate designated as a "Class C
Certificate" on the face thereof, in the form of Exhibit C hereto,
representing the right to distributions as set forth herein.

          Class C Distributable Amount: As defined in the Preliminary
Statement.

          Class M-1 Certificate: Any Certificate designated as a "Class M-1
Certificate" on the face thereof, in the form of Exhibit A-6 hereto,
representing the right to distributions as set forth herein.

          Class M-2 Certificate: Any Certificate designated as a "Class M-2
Certificate" on the face thereof, in the form of Exhibit A-7 hereto,
representing the right to distributions as set forth herein.

          Class M-3 Certificate: Any Certificate designated as a "Class M-3
Certificate" on the face thereof, in the form of Exhibit A-8 hereto,
representing the right to distributions as set forth herein.

          Class M-4 Certificate: Any Certificate designated as a "Class M-4
Certificate" on the face thereof, in the form of Exhibit A-9 hereto,
representing the right to distributions as set forth herein.

          Class M-5 Certificate: Any Certificate designated as a "Class M-5
Certificate" on the face thereof, in the form of Exhibit A-10 hereto,
representing the right to distributions as set forth herein.

          Class M-6 Certificate: Any Certificate designated as a "Class M-6
Certificate" on the face thereof, in the form of Exhibit A-11 hereto,
representing the right to distributions as set forth herein.

          Class M-7 Certificate: Any Certificate designated as a "Class M-7
Certificate" on the face thereof, in the form of Exhibit A-12 hereto,
representing the right to distributions as set forth herein.

          Class M-8 Certificate: Any Certificate designated as a "Class M-8
Certificate" on the face thereof, in the form of Exhibit A-13 hereto,
representing the right to distributions as set forth herein.

          Class M-9 Certificate: Any Certificate designated as a "Class M-9
Certificate" on the face thereof, in the form of Exhibit A-14 hereto,
representing the right to distributions as set forth herein.


                                      16
<PAGE>


          Class P Certificate: Any Certificate designated as a "Class P
Certificate" on the face thereof, in the form of Exhibit B hereto,
representing the right to distributions as set forth herein.

          Class P Principal Distribution Date: The first Distribution Date
that occurs after the end of the latest Prepayment Charge Period for all
Mortgage Loans that have a Prepayment Charge Period.

           Closing Date: November 8, 2006.

          Code: The Internal Revenue Code of 1986, including any successor or
amendatory provisions.

          Collateral Schedule: Schedule II hereto.

          Combined Class M-1, M-2 and M-3 Principal Distribution Amount: With
respect to any Distribution Date, the excess of (1) the sum of (a) the
aggregate Certificate Principal Balance of the Class A Certificates (after
taking into account distribution of the Class 1-A Principal Distribution
Amount and Class 2-A Principal Distribution Amount for such Distribution Date)
and (b) the aggregate Certificate Principal Balance of the Class M-1, Class
M-2 and Class M-3 Certificates immediately prior to the Distribution Date over
(2) the lesser of (a) 82.60% of the aggregate Stated Principal Balance of the
Mortgage Loans for the Distribution Date and (b) the aggregate Stated
Principal Balance of the Mortgage Loans for the Distribution Date minus the OC
Floor; provided, however, that if the Class M-1, Class M-2 and/or Class M-3
Certificates are the only Classes of Subordinate Certificates outstanding on
such Distribution Date, those Classes will be entitled to receive the entire
remaining Principal Distribution Amount for Loan Group 1 and Loan Group 2
until the Certificate Principal Balances thereof are reduced to zero.

          Commission: The U.S. Securities and Exchange Commission.

          Compensating Interest: With respect to each Loan Group and any
Distribution Date, an amount equal to, in that Loan Group, the lesser of (x)
one-half of the Servicing Fee for the related Due Period and (y) the aggregate
Prepayment Interest Shortfalls for the Mortgage Loans in that Loan Group for
such Distribution Date.

          Confirmation: The confirmation, reference number FXCWL0620, with a
trade date of October 26, 2006 evidencing a transaction between the Swap
Counterparty and CHL relating to the Swap Contract.

          Corporate Trust Office: The designated office of the Trustee in the
State of New York where at any particular time its corporate trust business
with respect to this Agreement shall be administered, which office at the date
of the execution of this Agreement is located at 101 Barclay Street, New York,
New York 10286 (Attention: Corporate Trust MBS Administration), telephone:
(212) 815-3236, facsimile: (212) 815-3986.

          Co-Trustee: The Bank of New York Trust Company, N.A., a national
banking association, not in its individual capacity, but solely in its
capacity as co-trustee for the benefit of


                                       17
<PAGE>


the Certificateholders under this Agreement, and any successor thereto, and
any corporation or national banking association resulting from or surviving
any consolidation or merger to which it or its successors may be a party.

          Covered Mortgage Loan: A Mortgage Loan listed on the Mortgage Loan
Schedule as being covered by a Mortgage Insurance Policy.

          Credit Bureau Risk Score: A statistical credit score obtained by CHL
in connection with the origination of a Mortgage Loan.

          Credit Comeback Excess Account: The separate Eligible Account
created and initially maintained by the Trustee pursuant to Section 4.08 in
the name of the Trustee for the benefit of the Certificateholders and
designated "The Bank of New York in trust for registered Holders of CWABS,
Inc., Asset-Backed Certificates, Series 2006-20". Funds in the Credit Comeback
Excess Account shall be held in trust for the Certificateholders for the uses
and purposes set forth in this Agreement.

          Credit Comeback Excess Amount: With respect to the Credit Comeback
Loans in any Loan Group and any Master Servicer Advance Date, the portion of
the sum of the following (without duplication) attributable to the excess, if
any, of the actual mortgage rate on each Credit Comeback Loan in such Loan
Group and the Mortgage Rate on such Credit Comeback Loan: (i) all scheduled
interest collected during the related Due Period with respect to the Credit
Comeback Loans in such Loan Group, (ii) all interest on prepayments received
during the related Prepayment Period with respect to the Credit Comeback Loans
in such Loan Group, other than Prepayment Interest Excess, (iii) all Advances
relating to interest with respect to the Credit Comeback Loans in such Loan
Group, (iv) all Compensating Interest with respect to the Credit Comeback
Loans in such Loan Group and (v) Liquidation Proceeds with respect to the
Credit Comeback Loans in such Loan Group collected during the related Due
Period (to the extent such Liquidation Proceeds relate to interest), less all
Nonrecoverable Advances for such Loan Group relating to interest reimbursed
during the related Due Period.

          Credit Comeback Excess Cashflow: With respect to any Distribution
Date, any amounts in the Credit Comeback Excess Account available for such
Distribution Date.

          Credit Comeback Loan: Any Fixed Rate Mortgage Loan for which the
related Mortgage Rate is subject to reduction (not exceeding 0.375% per annum)
for good payment history of Scheduled Payments by the related Mortgagor.

          Cumulative Loss Trigger Event: With respect to a Distribution Date
on or after the Stepdown Date, a Cumulative Loss Trigger Event will be in
effect if (x) the aggregate amount of Realized Losses on the Mortgage Loans
from the Cut-off Date for each such Mortgage Loan to (and including) the last
day of the related Due Period (reduced by the aggregate amount of any
Subsequent Recoveries received through the last day of that Due Period)
exceeds (y) the applicable percentage, for such Distribution Date, of the sum
of the aggregate Cut-off Date Principal Balance of the Initial Mortgage Loans
and the Pre-Funded Amount, as set forth below:


                                      18
<PAGE>


<TABLE>
<CAPTION>

Distribution Date                                    Percentage
-----------------                                    ----------
<S>                                                  <C>       
November 2008 -- October 2009...................... 1.10% with respect to November 2008, plus
                                                    an additional 1/12th of 1.35% for each
                                                    month thereafter through October 2009

November 2009 -- October 2010...................... 2.45% with respect to November 2009, plus
                                                    an additional 1/12th of 1.45% for each
                                                    month thereafter through October 2010

November 2010 -- October 2011...................... 3.90% with respect to November 2010, plus
                                                    an additional 1/12th of 1.10% for each
                                                    month thereafter through October 2011

November 2011 -- October 2012...................... 5.00% with respect to November 2011, plus
                                                    an additional 1/12th of 0.50% for each
                                                    month thereafter through October 2012

November 2012 and thereafter......................   5.50%

</TABLE>

          Current Interest: With respect to each Class of Interest-Bearing
Certificates and each Distribution Date, the interest accrued at the
applicable Pass-Through Rate for the applicable Accrual Period on the
Certificate Principal Balance of such Class immediately prior to such
Distribution Date.

          Cut-off Date: When used with respect to any Mortgage Loan the
"Cut-off Date" shall mean the Initial Cut-off Date or the related Subsequent
Cut-off Date, as the case may be.

          Cut-off Date Principal Balance: As to any Mortgage Loan, the unpaid
principal balance thereof as of the close of business on the Cut-off Date
after application of all payments of principal due on or prior to the Cut-off
Date, whether or not received, and all Principal Prepayments received on or
prior to the Cut-off Date, but without giving effect to any installments of
principal received in respect of Due Dates after the Cut-off Date.

           Debt Service Reduction: With respect to any Mortgage Loan, a
reduction by a court of competent jurisdiction in a proceeding under the
Bankruptcy Code in the Scheduled Payment for such Mortgage Loan that became
final and non-appealable, except such a reduction resulting from a Deficient
Valuation or any other reduction that results in a permanent forgiveness of
principal.

          Deficient Valuation: With respect to any Mortgage Loan, a valuation
by a court of competent jurisdiction of the Mortgaged Property in an amount
less than the then outstanding indebtedness under such Mortgage Loan, or any
reduction in the amount of principal to be paid in connection with any
Scheduled Payment that results in a permanent forgiveness of principal,


                                       19
<PAGE>


which valuation or reduction results from an order of such court that is final
and non-appealable in a proceeding under the Bankruptcy Code.

          Definitive Certificates: As defined in Section 5.06.

          Delay Delivery Mortgage Loans: (i) The Initial Mortgage Loans
identified on the schedule of Mortgage Loans hereto set forth on Exhibit F-2
hereof for which all or a portion of a related Mortgage File is not delivered
to the Co-Trustee on or prior to the Closing Date, and (ii) the Subsequent
Mortgage Loans identified on the schedule of Subsequent Mortgage Loans set
forth in Annex A to each related Subsequent Transfer Agreement for which all
or a portion of the related Mortgage File is not delivered to the Co-Trustee
on or prior to the related Subsequent Transfer Date. The Depositor shall
deliver (or cause delivery of) the Mortgage Files to the Co-Trustee: (A) with
respect to at least 50% of the Initial Mortgage Loans in each Loan Group, not
later than the Closing Date and with respect to at least 10% of the Subsequent
Mortgage Loans in each Loan Group conveyed on a Subsequent Transfer Date, not
later than such Subsequent Transfer Date, (B) with respect to at least an
additional 40% of the Initial Mortgage Loans in each Loan Group, not later
than 20 days after the Closing Date, and not later than 20 days after the
relevant Subsequent Transfer Date with respect to the remaining Subsequent
Mortgage Loans conveyed on such Subsequent Transfer Date, and (C) with respect
to the remaining Initial Mortgage Loans, not later than thirty days after the
Closing Date. To the extent that Countrywide Home Loans, Inc. shall be in
possession of any Mortgage Files with respect to any Delay Delivery Mortgage
Loan, until delivery of such Mortgage File to the Co-Trustee as provided in
Section 2.01, Countrywide Home Loans, Inc. shall hold such files as agent and
in trust for the Co-Trustee.

          Deleted Mortgage Loan: A Mortgage Loan replaced or to be replaced by
a Replacement Mortgage Loan.

          Delinquency Trigger Event: With respect to any Distribution Date on
or after the Stepdown Date, a Delinquency Trigger Event will be in effect if
the Rolling Sixty-Day Delinquency Rate for Outstanding Mortgage Loans equals
or exceeds the product of (x) the Senior Enhancement Percentage for such
Distribution Date and (y) the applicable percentage listed below for the most
senior Class of Interest-Bearing Certificates:


                                      20
<PAGE>


                       Class                             Percentage

             A.....................                        42.97%
             M-1...................                        53.35%
             M-2...................                        68.30%
             M-3...................                        81.25%
             M-4...................                        97.50%
             M-5...................                       120.83%
             M-6...................                       147.26%
              M-7...................                       183.60%
             M-8...................                       228.02%
             M-9...................                       294.52%
             B.....................                       403.92%

           Denomination: With respect to each Certificate, the amount set forth
on the face thereof as the "Initial Certificate Balance of this Certificate"
or, if not the foregoing, the Percentage Interest appearing on the face
thereof, as applicable.

           Depositor: CWABS, Inc., a Delaware corporation, or its successor in
interest.

          Depository: The initial Depository shall be The Depository Trust
Company, the nominee of which is Cede & Co., or any other organization
registered as a "clearing agency" pursuant to Section 17A of the Securities
Exchange Act of 1934, as amended. The Depository shall initially be the
registered Holder of the Book-Entry Certificates. The Depository shall at all
times be a "clearing corporation" as defined in Section 8-102(a)(5) of the
Uniform Commercial Code of the State of New York.

          Depository Agreement: With respect to the Book-Entry Certificates,
the agreement among the Depositor and the initial Depository, dated as of the
Closing Date, substantially in the form of Exhibit O.

          Depository Participant: A broker, dealer, bank or other financial
institution or other person for whom from time to time a Depository effects
book-entry transfers and pledges of securities deposited with the Depository.

           Determination Date: With respect to any Distribution Date, the 15th
day of the month of such Distribution Date or, if such 15th day is not a
Business Day, the immediately preceding Business Day.

          Directing Certificateholder: As defined in Section 9.04(a).

          Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.05(c) in the name of the
Trustee for the benefit of the Certificateholders and designated "The Bank of
New York, in trust for registered Holders of CWABS, Inc., Asset-Backed
Certificates, Series 2006-20". Funds in the Distribution Account shall be held
in trust for the Certificateholders for the uses and purposes set forth in
this Agreement.


                                       21
<PAGE>


          Distribution Account Deposit Date: As to any Distribution Date, 1:00
p.m. Pacific time on the Business Day immediately preceding such Distribution
Date.

          Distribution Date: The 25th day of each month, or if such day is not
a Business Day, on the first Business Day thereafter, commencing in November
2006.

          Due Date: With respect to any Mortgage Loan and Due Period, the due
date for Scheduled Payments of interest and/or principal on that Mortgage Loan
occurring in such Due Period as provided in the related Mortgage Note.

          Due Period: With respect to any Distribution Date, the period
beginning on the second day of the calendar month preceding the calendar month
in which such Distribution Date occurs and ending on the first day of the
month in which such Distribution Date occurs.

          EDGAR: The Commission's Electronic Data Gathering, Analysis and
Retrieval system.

          Eligible Account: Any of (i) an account or accounts maintained with
a federal or state chartered depository institution or trust company, the
long-term unsecured debt obligations and short-term unsecured debt obligations
of which (or, in the case of a depository institution or trust company that is
the principal subsidiary of a holding company, the debt obligations of such
holding company, if Moody's is not a Rating Agency) are rated by each Rating
Agency in one of its two highest long-term and its highest short-term rating
categories respectively, at the time any amounts are held on deposit therein,
or (ii) an account or accounts in a depository institution or trust company in
which such accounts are insured by the FDIC (to the limits established by the
FDIC) and the uninsured deposits in which accounts are otherwise secured such
that, as evidenced by an Opinion of Counsel delivered to the Trustee and to
each Rating Agency, the Certificateholders have a claim with respect to the
funds in such account or a perfected first priority security interest against
any collateral (which shall be limited to Permitted Investments) securing such
funds that is superior to claims of any other depositors or creditors of the
depository institution or trust company in which such account is maintained,
or (iii) a trust account or accounts maintained with the corporate trust
department of a federal or state chartered depository institution or trust
company having capital and surplus of not less than $50,000,000, acting in its
fiduciary capacity or (iv) any other account acceptable to the Rating Agencies
without reduction or withdrawal of their then-current ratings of the
Certificates as evidenced by a letter from each Rating Agency to the Trustee.
Eligible Accounts may bear interest, and may include, if otherwise qualified
under this definition, accounts maintained with the Trustee.

          Eligible Repurchase Month: As defined in Section 3.12(d) hereof.

          ERISA: The Employee Retirement Income Security Act of 1974, as
amended.

          ERISA-Qualifying Underwriting: A best efforts or firm commitment
underwriting or private placement that meets the applicable requirements of
the Underwriter's Exemption.


                                      22
<PAGE>


          ERISA-Restricted Certificates: The Class A-R Certificates, Class P
Certificates, Class C Certificates and Certificates of any Class that does not
have or no longer has a rating of BBB- or its equivalent, or better, from at
least one Rating Agency.

          Escrow Account: As defined in Section 3.06 hereof.

          Event of Default: As defined in Section 7.01 hereof.

          Excess Cashflow: With respect to any Distribution Date the sum of
(i) the amount remaining after the distribution of interest to
Certificateholders for such Distribution Date pursuant to Section
4.04(a)(v)(b), (ii) the amount remaining after the distribution of principal
to Certificateholders for such Distribution Date, pursuant to Section
4.04(b)(1)(B)(ii) or 4.04(b)(2)(D) and (iii) the Overcollateralization
Reduction Amount for such Distribution Date.

          Excess Deposit: As defined in Section 8.11 hereof.

          Excess Overcollateralization Amount: With respect to any
Distribution Date, the excess, if any, of the Overcollateralized Amount for
such Distribution Date over the Overcollateralization Target Amount for such
Distribution Date.

          Excess Proceeds: With respect to any Liquidated Mortgage Loan, the
amount, if any, by which the sum of any Liquidation Proceeds and Subsequent
Recoveries are in excess of the sum of (i) the unpaid principal balance of
such Liquidated Mortgage Loan as of the date of liquidation of such Liquidated
Mortgage Loan plus (ii) interest at the Mortgage Rate from the Due Date as to
which interest was last paid or advanced to Certificateholders (and not
reimbursed to the Master Servicer) up to the Due Date in the month in which
Liquidation Proceeds are required to be distributed on the Stated Principal
Balance of such Liquidated Mortgage Loan outstanding during each Due Period as
to which such interest was not paid or advanced.

          Exchange Act: The Securities Exchange Act of 1934, as amended, and
the rules and regulations promulgated thereunder.

          Exchange Act Reports: Any reports on Form 10-D, Form 8-K and Form
10-K required to be filed by the Depositor with respect to the Trust Fund
under the Exchange Act.

          Expense Fee Rate: With respect to any Mortgage Loan, the sum of (i)
the Servicing Fee Rate, (ii) the Trustee Fee Rate, (iii) with respect to a
Covered Mortgage Loan, the applicable Mortgage Insurance Premium Rate and (iv)
with respect to any Mortgage Loan covered by a lender paid mortgage insurance
policy (other than a Mortgage Insurance Policy), the related mortgage
insurance premium rate.

          Extra Principal Distribution Amount: With respect to any
Distribution Date and each of Loan Group 1 and Loan Group 2, the lesser of (1)
the Overcollateralization Deficiency Amount and (2) the Excess Cashflow and
Credit Comeback Excess Cashflow available for payment thereof, to be allocated
between Loan Group 1 and Loan Group 2, pro rata, based on the Principal
Remittance Amount for each such Loan Group for such Distribution Date.


                                      23
<PAGE>


          Fannie Mae: The Federal National Mortgage Association, a federally
chartered and privately owned corporation organized and existing under the
Federal National Mortgage Association Charter Act, or any successor thereto.

          FDIC: The Federal Deposit Insurance Corporation, or any successor
thereto.

          Final Maturity Funding Cap: For any Distribution Date beginning with
the Distribution Date in November 2016, the least of (i) the aggregate
Certificate Principal Balance of the Interest-Bearing Certificates immediately
prior to that Distribution Date, (ii) the aggregate Stated Principal Balance
of all outstanding 40-Year Mortgage Loans as of the first day of the related
Due Period (after giving effect to Principal Prepayments received during the
Prepayment Period that ends during such Due Period) and (iii) $17,583,460.

          Final Maturity OC Trigger: With respect to any Distribution Date on
or after the Distribution Date in November 2026, the Final Maturity OC Trigger
will be in effect if and for so long as the sum of (x) the amount on deposit
in the Final Maturity Reserve Fund on that Distribution Date and (y) the
Overcollateralized Amount for that Distribution Date is less than the
outstanding Stated Principal Balance of all 40-Year Mortgage Loans as of the
first day of the related Due Period (after giving effect to Principal
Prepayments received during the Prepayment Period that ends during such Due
Period).

          Final Maturity Required Deposit Trigger: With respect to any
Distribution Date on or after the Distribution Date in November 2016 up to and
including the Final Maturity Reserve Funding Date, the Final Maturity Required
Deposit Trigger shall be in effect with respect to such Distribution Date if
the aggregate Stated Principal Balance of the 40-Year Mortgage Loans as of the
Due Date occurring in the month preceding the month of that Distribution Date
(after giving effect to Principal Prepayments in the Prepayment Period related
to that prior Due Date) is greater than the "40-Year Target" specified on the
40-Year Target Schedule for such Distribution Date.

          Final Maturity Reserve Deposit: For any Distribution Date beginning
on the Distribution Date in November 2016 up to and including the Final
Maturity Reserve Funding Date, if the Final Maturity Required Deposit Trigger
is not in effect with respect to such Distribution Date, then the Final
Maturity Reserve Deposit with respect to such Distribution Date shall be $0,
and if the Final Maturity Required Deposit Trigger is in effect with respect
to such Distribution Date, then the Final Maturity Reserve Deposit with
respect to such Distribution Date shall be an amount equal to the lesser of
(a) the product of (i) 0.80% and (ii) the aggregate Stated Principal Balance
of the 40-Year Mortgage Loans as of the Due Date occurring in the month
preceding the month of that Distribution Date (after giving effect to
Principal Prepayments in the Prepayment Period related to that prior Due Date)
and (b) the excess of (i) the Final Maturity Funding Cap for such Distribution
Date over (ii) the amount on deposit in the Final Maturity Reserve Fund
immediately prior to such Distribution Date.

          Final Maturity Reserve Fund: The separate Eligible Account created
and initially maintained by the Trustee pursuant to Section 4.09 in the name
of the Trustee for the benefit of the Certificateholders and designated "The
Bank of New York in trust for registered Holders of CWABS, Inc., Asset-Backed
Certificates, Series 2006-20". Funds in the Final Maturity Reserve


                                       24
<PAGE>


Fund shall be held in trust for the Certificateholders for the uses and
purposes set forth in this Agreement.

          Final Maturity Reserve Funding Date: The earlier of (i) the
Distribution Date on which the amount on deposit in the Final Maturity Reserve
Fund is equal to the Final Maturity Funding Cap and (ii) the Distribution Date
occurring in October 2036.

          Final Maturity Reserve Trust: The trust fund established by Section
4.10.

          Final Maturity Reserve Trustee: The Bank of New York, a New York
banking corporation, not in its individual capacity, but solely in its
capacity as trustee for the benefit of the Holders of the Certificates under
this Agreement, and any successor thereto, and any corporation or national
banking association resulting from or surviving any consolidation or merger to
which it or its successors may be a party and any successor trustee as may
from time to time be serving as successor trustee hereunder.

          Five-Year Hybrid Mortgage Loan: A Mortgage Loan having a Mortgage
Rate that is fixed for 60 months after origination thereof before such
Mortgage Rate becomes subject to adjustment.

          Fixed Rate Mortgage Loans: The Mortgage Loans identified in the
Mortgage Loan Schedule as having a Mortgage Rate which is fixed for the life
of the related Mortgage and any Credit Comeback Loans, including in each case
any Mortgage Loans delivered in replacement thereof.

          Form 10-D Disclosure Item: With respect to any Person, any material
litigation or governmental proceedings pending against such Person, or against
any of the Trust Fund, the Depositor, the Trustee, any co-trustee, the Master
Servicer or any Subservicer, if such Person has actual knowledge thereof.

          Form 10-K Disclosure Item: With respect to any Person, (a) Form 10-D
Disclosure Item, and (b) any affiliations or relationships between such Person
and any Item 1119 Party.

          Freddie Mac: The Federal Home Loan Mortgage Corporation, a corporate
instrumentality of the United States created and existing under Title III of
the Emergency Home Finance Act of 1970, as amended, or any successor thereto.

          Funding Period: The period from the Closing Date to and including
the earlier to occur of (x) the date the amount in the Pre-Funding Account is
less than $175,000 and (y) December 22, 2006.

          Gross Margin: The percentage set forth in the related Mortgage Note
to be added to the Index for use in determining the Mortgage Rate for each
Adjustable Rate Mortgage Loan on each of its Adjustment Dates.


                                      25
<PAGE>


          Group 1 Mortgage Loans: The group of Mortgage Loans identified in
the related Mortgage Loan Schedule as "Group 1 Mortgage Loans", including in
each case any Mortgage Loans delivered in replacement thereof.

          Group 1 Overcollateralization Reduction Amount: With respect to any
Distribution Date, the Overcollateralization Reduction Amount for such
Distribution Date multiplied by a fraction, the numerator of which is (x) the
Principal Remittance Amount for Loan Group 1 for such Distribution Date, and
the denominator of which is (y) the aggregate Principal Remittance Amount for
Loan Group 1 and Loan Group 2 for such Distribution Date.

          Group 1 Pre-Funded Amount: The portion of the Pre-Funded Amount
allocable for purchase of Subsequent Mortgage Loans as Group 1 Mortgage Loans
on the Closing Date, which shall equal $216.40.

          Group 2 Mortgage Loans: The group of Mortgage Loans identified in
the related Mortgage Loan Schedule as "Group 2 Mortgage Loans", including in
each case any Mortgage Loans delivered in replacement thereof.

          Group 2 Overcollateralization Reduction Amount: With respect to any
Distribution Date, the Overcollateralization Reduction Amount for such
Distribution Date multiplied by a fraction, the numerator of which is the
Principal Remittance Amount for Loan Group 2 for such Distribution Date, and
the denominator of which is the aggregate Principal Remittance Amount for Loan
Group 1 and Loan Group 2 for such Distribution Date.

          Group 2 Pre-Funded Amount: The portion of the Pre-Funded Amount
allocable for purchase of Subsequent Mortgage Loans as Group 2 Mortgage Loans
on the Closing Date, which shall equal $236,304,821.58.

          Index: As to any Adjustable Rate Mortgage Loan on any Adjustment
Date related thereto, the index for the adjustment of the Mortgage Rate set
forth as such in the related Mortgage Note, such index in general being either
(i) the average of the interbank offered rates for six-month U.S.
dollar-denominated deposits in the London market, as set forth in The Wall
Street Journal or (ii) the weekly average yield on United States Treasury
securities adjusted to a constant maturity of one year as published by the
Federal Reserve Board in Statistical Release H.15(591), in either case as most
recently announced as of a date 45 days prior to such Adjustment Date or, if
the applicable Index becomes unavailable for any reason, then the Index shall
be a new index selected by the Master Servicer, based on comparable
information.

          Initial Adjustment Date: As to any Adjustable Rate Mortgage Loan,
the first Adjustment Date following the origination of such Mortgage Loan.

          Initial Certificate Account Deposit: An amount equal to the
aggregate of all amounts in respect of (i) principal of the Initial Mortgage
Loans due after the Initial Cut-off Date and received by the Master Servicer
before the Closing Date and not applied in computing the Cut-off Date
Principal Balance thereof and (ii) interest on the Initial Mortgage Loans due
after the Initial Cut-off Date and received by the Master Servicer before the
Closing Date.


                                      26
<PAGE>


           Initial Certificate Principal Balance: With respect to any
Certificate (other than the Class C Certificates) the Certificate Principal
Balance of such Certificate or any predecessor Certificate on the Closing
Date.

          Initial Cut-off Date: In the case of any Initial Mortgage Loan, the
later of (x) October 1, 2006 and (y) the date of origination of such Mortgage
Loan.

          Initial Mortgage Loan: A Mortgage Loan conveyed to the Trustee on
the Closing Date pursuant to this Agreement as identified on the Mortgage Loan
Schedule delivered to the Trustee on the Closing Date.

          Initial Mortgage Rate: As to each Adjustable Rate Mortgage Loan, the
Mortgage Rate in effect prior to the Initial Adjustment Date.

          Initial Periodic Rate Cap: With respect to each Adjustable Rate
Mortgage Loan, the percentage specified in the related Mortgage Note that
limits the permissible increase or decrease in the Mortgage Rate on its
initial Adjustment Date.

          Insurance Policy: With respect to any Mortgage Loan included in the
Trust Fund, any insurance policy, including each Mortgage Insurance Policy and
all riders and endorsements to each such Mortgage Insurance Policy in effect
with respect to such Mortgage Loan, including any replacement policy or
policies for any Insurance Policy.

          Insurance Proceeds: Proceeds paid in respect of the Mortgage Loans
pursuant to any Insurance Policy or any other insurance policy covering a
Mortgage Loan, to the extent such proceeds are payable to the mortgagee under
the Mortgage, the Master Servicer or the trustee under the deed of trust and
are not applied to the restoration of the related Mortgaged Property or
released to the Mortgagor in accordance with the procedures that the Master
Servicer would follow in servicing mortgage loans held for its own account, in
each case other than any amount included in such Insurance Proceeds in respect
of Insured Expenses and received either prior to or in connection with such
Mortgage Loan becoming a Liquidated Mortgage Loan.

          Insured Expenses: Expenses covered by an Insurance Policy or any
other insurance policy with respect to the Mortgage Loans.

          Interest-Bearing Certificates: The Class A Certificates and the
Subordinate Certificates.

           Interest Carry Forward Amount: With respect to each Class of
Interest-Bearing Certificates and each Distribution Date, the excess of (i)
the Current Interest for such Class with respect to prior Distribution Dates
over (ii) the amount actually distributed to such Class with respect to
interest on such prior Distribution Dates.

          Interest Determination Date: With respect to the first Accrual
Period for the Interest-Bearing Certificates, November 6, 2006. With respect
to any Accrual Period for the Interest-Bearing Certificates thereafter, the
second LIBOR Business Day preceding the commencement of such Accrual Period.


                                      27
<PAGE>


          Interest Funds: With respect to any Distribution Date and Loan
Group, the Interest Remittance Amount for such Loan Group and Distribution
Date, less the portion of the Trustee Fee for such Distribution Date allocable
to such Loan Group, plus the Adjusted Replacement Upfront Amount, if any,
allocable to that Loan Group, less the Mortgage Insurance Premiums for the
Covered Mortgage Loans in that Loan Group for such Distribution Date..

          Interest Remittance Amount: With respect to the Mortgage Loans in
each Loan Group and any Distribution Date, (x) the sum, without duplication,
of (i) all scheduled interest collected during the related Due Period (for the
avoidance of doubt, other than Credit Comeback Excess Amounts) with respect to
the related Mortgage Loans less the related Servicing Fee, (ii) all interest
on prepayments received during the related Prepayment Period with respect to
such Mortgage Loans, other than Prepayment Interest Excess, (iii) all related
Advances relating to interest with respect to such Mortgage Loans, (iv) all
related Compensating Interest with respect to such Mortgage Loans, (v)
Liquidation Proceeds with respect to such Mortgage Loans collected during the
related Due Period (to the extent such Liquidation Proceeds relate to
interest) and (vi) the related Seller Shortfall Interest Requirement, less (y)
all reimbursements to the Master Servicer during the related Due Period for
Advances of interest previously made allocable to such Loan Group.

          Investment Letter: As defined in Section 5.02(b).

          Item 1119 Party: The Depositor, any Seller, the Master Servicer, the
Trustee, any Subservicer, any originator identified in the Prospectus
Supplement, the Swap Counterparty and any other material transaction party, as
identified in Exhibit Z hereto, as updated pursuant to Section 11.04.

           Latest Possible Maturity Date: The Distribution Date following the
third anniversary of the scheduled maturity date of the Mortgage Loan having
the latest scheduled maturity date as of the Cut-off Date.

          LIBOR Business Day: Any day on which banks in the City of London,
England and New York City, U.S.A. are open and conducting transactions in
foreign currency and exchange.

          Limited Exchange Act Reporting Obligations: The obligations of the
Master Servicer under Section 3.17(b), Section 6.02 and Section 6.04 with
respect to notice and information to be provided to the Depositor and Article
XI (except Section 11.07(a)(1) and (2)).

          Liquidated Mortgage Loan: With respect to any Distribution Date, a
defaulted Mortgage Loan that has been liquidated through deed-in-lieu of
foreclosure, foreclosure sale, trustee's sale or other realization as provided
by applicable law governing the real property subject to the related Mortgage
and any security agreements and as to which the Master Servicer has certified
in the related Prepayment Period that it has received all amounts it expects
to receive in connection with such liquidation.

          Liquidation Proceeds: Amounts, including Insurance Proceeds,
received in connection with the partial or complete liquidation of Mortgage
Loans, whether through trustee's sale, foreclosure sale or otherwise or
amounts received in connection with any condemnation or


                                      28
<PAGE>


partial release of a Mortgaged Property and any other proceeds received in
connection with an REO Property received in connection with or prior to such
Mortgage Loan becoming a Liquidated Mortgage Loan (other than the amount of
such net proceeds representing any profit realized by the Master Servicer in
connection with the disposition of any such properties), less the sum of
related unreimbursed Advances, Servicing Fees and Servicing Advances.

          Loan Group: Either of Loan Group 1 or Loan Group 2.

          Loan Group 1: The Group 1 Mortgage Loans.

          Loan Group 2: The Group 2 Mortgage Loans.

          Loan Number and Borrower Identification Mortgage Loan Schedule: With
respect to any Subsequent Transfer Date, the Loan Number and Borrower
Identification Mortgage Loan Schedule delivered in connection with such
Subsequent Transfer Date pursuant to Section 2.01(f). Each Loan Number and
Borrower Identification Mortgage Loan Schedule shall contain the information
specified in the definition of "Mortgage Loan Schedule" with respect to the
Subsequent Mortgage Loans conveyed on such Subsequent Transfer Date, and each
Loan Number and Borrower Identification Mortgage Loan Schedule shall be deemed
to be included in the Mortgage Loan Schedule.

          Loan-to-Value Ratio: As to any Mortgage Loan, the fraction,
expressed as a percentage, the numerator of which is the original principal
balance of such Mortgage Loan and the denominator of which is the Appraised
Value of the related Mortgaged Property.

          Majority Holder: The Holders of Certificates evidencing at least 51%
of the Voting Rights allocated to such Class of Certificates.

          Master REMIC: As defined in the Preliminary Statement.

          Master Servicer: Countrywide Home Loans Servicing LP, a Texas
limited partnership, and its successors and assigns, in its capacity as master
servicer hereunder.

          Master Servicer Advance Date: As to any Distribution Date, the
Business Day immediately preceding such Distribution Date.

          Master Servicer Prepayment Charge Payment Amount: The amounts (i)
payable by the Master Servicer in respect of any Prepayment Charges waived
other than in accordance with the standard set forth in the first sentence of
Section 3.20(a), or (ii) collected from the Master Servicer in respect of a
remedy for the breach of the representation made by CHL set forth in Section
3.20(c).

          Maximum Mortgage Rate: With respect to each Adjustable Rate Mortgage
Loan, the maximum rate of interest set forth as such in the related Mortgage
Note.

          MERS: Mortgage Electronic Registration Systems, Inc., a corporation
organized and existing under the laws of the State of Delaware, or any
successor thereto.


                                      29
<PAGE>


          MERS Mortgage Loan: Any Mortgage Loan registered with MERS on the
MERS(R) System.

          MERS(R) System: The system of recording transfers of mortgages
electronically maintained by MERS.

          MIN: The Mortgage Identification Number for any MERS Mortgage Loan.

           Minimum Mortgage Rate: With respect to each Adjustable Rate Mortgage
Loan, the minimum rate of interest set forth as such in the related Mortgage
Note.

          Modified Mortgage Loan: As defined in Section 3.12(a).

          MOM Loan: Any Mortgage Loan, as to which MERS is acting as
mortgagee, solely as nominee for the originator of such Mortgage Loan and its
successors and assigns.

          Monthly Statement: The statement delivered to the Certificateholders
pursuant to Section 4.05.

           Moody's: Moody's Investors Service, Inc. and its successors.

          Mortgage: The mortgage, deed of trust or other instrument creating a
first lien on or first priority ownership interest in an estate in fee simple
in real property securing a Mortgage Note.

          Mortgage File: The mortgage documents listed in Section 2.01 hereof
pertaining to a particular Mortgage Loan and any additional documents
delivered to the Trustee to be added to the Mortgage File pursuant to this
Agreement.

          Mortgage Insurance Policy: Either of the Mortgage Insurance Policy
issued by United Guaranty Mortgage Indemnity Company or the Mortgage Insurance
Policy issued by Mortgage Guaranty Insurance Corporation with respect to
certain Mortgage Loans identified in the Mortgage Loan Schedule.

          Mortgage Insurance Premium: Either of the premium payable on the
Mortgage Insurance Policy issued by United Guaranty Mortgage Indemnity Company
or the premium payable on the Mortgage Insurance Policy issued by Mortgage
Guaranty Insurance Corporation, each on each Distribution Date and amounts due
for premium taxes with respect to West Virginia and Kentucky.

          Mortgage Insurance Premium Rate: With respect to a Covered Mortgage
Loan and any Distribution Date, the per annum rate equal to a fraction
(expressed as a percentage), the numerator of which is equal to the portion of
the applicable Mortgage Insurance Premium payable with respect to such
Distribution Date attributable to such Covered Mortgage Loan multiplied by
twelve and the denominator of which is equal to the Stated Principal Balance
of such Covered Mortgage Loan.


                                      30
<PAGE>


          Mortgage Insurer: Either of United Guaranty Mortgage Indemnity
Company or Mortgage Guaranty Insurance Corporation or any replacement Mortgage
Insurer, as applicable.

          Mortgage Loan Schedule: The list of Mortgage Loans (as from time to
time amended by the Master Servicer to reflect the deletion of Liquidated
Mortgage Loans and Deleted Mortgage Loans and the addition of (x) Replacement
Mortgage Loans pursuant to the provisions of this Agreement and (y) Subsequent
Mortgage Loans pursuant to the provisions of this Agreement and any Subsequent
Transfer Agreement) transferred to the Trustee as part of the Trust Fund and
from time to time subject to this Agreement, attached hereto as Exhibit F-1,
setting forth in the following information with respect to each Mortgage Loan:

               (i)      the loan number;

               (ii)     the Loan Group;

               (iii)    the Appraised Value;

               (iv)     the Initial Mortgage Rate;

               (v)      the maturity date;

               (vi)     the original principal balance;

               (vii)    the Cut-off Date Principal Balance;

               (viii)   the first payment date of the Mortgage Loan;

               (ix)     the Scheduled Payment in effect as of the Cut-off
                       Date;

               (x)      the Loan-to-Value Ratio at origination;
 
               (xi)     a code indicating whether the residential dwelling at
                       the time of origination was represented to be
                       owner-occupied;

               (xii)    a code indicating whether the residential dwelling is
                       either (a) a detached single-family dwelling, (b) a
                       two-family residential property, (c) a three-family
                       residential property, (d) a four-family residential
                        property, (e) planned unit development, (f) a low-rise
                       condominium unit, (g) a high-rise condominium unit or
                       (h) manufactured housing;

               (xiii)   a code indicating whether such Mortgage Loan is a Credit
                       Comeback Loan;

               (xiv)    the purpose of the Mortgage Loan;

               (xv)     with respect to each Adjustable Rate Mortgage Loan:

                       (a)   the frequency of each Adjustment Date;


                                       31
<PAGE>


                       (b)   the next Adjustment Date;

                       (c)   the Maximum Mortgage Rate;

                       (d)   the Minimum Mortgage Rate;

                       (e)   the Mortgage Rate as of the Cut-off Date;

                       (f)   the related Initial Periodic Rate Cap and
                 Subsequent Periodic Rate Cap; and

                       (g) the Gross Margin;

               (xvi)    a code indicating whether the Mortgage Loan is a CHL
                       Mortgage Loan, a Park Monaco Mortgage Loan or a Park
                       Sienna Mortgage Loan;

               (xvii)   the premium rate for any lender-paid   mortgage
                       insurance, if applicable;

               (xviii) a code indicating whether the Mortgage Loan is a
                       Fixed Rate Mortgage Loan or an Adjustable Rate
                       Mortgage Loan; and

               (xix)    a code indicating if such Mortgage Loan is
                       a Covered Mortgage Loan, the applicable
                       Mortgage Insurance Policy and the rate for
                       the applicable Mortgage Insurance Premium,
                       if applicable.

Such schedule shall also set forth the total of the amounts described under
(vii) above for all of the Mortgage Loans and for each Loan Group. The
Mortgage Loan Schedule shall be deemed to include each Loan Number and
Borrower Identification Mortgage Loan Schedule delivered pursuant to Section
2.01(f) and all the related Subsequent Mortgage Loans and Subsequent Mortgage
Loan information included therein.

          Mortgage Loans: Such of the mortgage loans transferred and assigned
to the Trustee pursuant to the provisions hereof and any Subsequent Transfer
Agreement as from time to time are held as part of the Trust Fund (including
any REO Property), the mortgage loans so held being identified in the Mortgage
Loan Schedule, notwithstanding foreclosure or other acquisition of title of
the related Mortgaged Property. Any mortgage loan that was intended by the
parties hereto to be transferred to the Trust Fund as indicated by such
Mortgage Loan Schedule which is in fact not so transferred for any reason,
including a breach of the representation contained in Section 2.02 hereof,
shall continue to be a Mortgage Loan hereunder until the Purchase Price with
respect thereto has been paid to the Trust Fund.

          Mortgage Note: The original executed note or other evidence of
indebtedness evidencing the indebtedness of a Mortgagor under a Mortgage Loan.

          Mortgage Pool: The aggregate of the Mortgage Loans identified in the
Mortgage Loan Schedule.


                                      32
<PAGE>


          Mortgage Rate: The annual rate of interest borne by a Mortgage Note
from time to time; provided, however, the Mortgage Rate for each Credit
Comeback Loan shall be treated for all purposes of payments on the
Certificates, including the calculation of the Pass-Through Rates and the
applicable Net Rate Cap, as reduced by 0.375% on the Due Date following the
end of each of the first four annual periods after the origination date,
irrespective of whether the Mortgagor qualifies for the reduction by having a
good payment history.

           Mortgaged Property: The underlying property securing a Mortgage
Loan.

          Mortgagor: The obligors on a Mortgage Note.

          Net Mortgage Rate: As to each Mortgage Loan, and at any time, the
per annum rate equal to the Mortgage Rate less the Servicing Fee Rate.

          Net Rate Cap: With respect to any Distribution Date and (i) the
Class 1-A Certificates, the Class 1-A Net Rate Cap, (ii) each Class of Class
2-A Certificates, the Class 2-A Net Rate Cap and (iii) each Class of
Subordinate Certificates, the Subordinate Net Rate Cap.

          Net Rate Carryover: With respect to any Class of Interest-Bearing
Certificates and any Distribution Date, the sum of (A) the excess of (i) the
amount of interest that such Class would otherwise have accrued for such
Distribution Date had the Pass-Through Rate for such Class and the related
Accrual Period not been determined based on the applicable Net Rate Cap, over
(ii) the amount of interest accrued on such Class at the applicable Net Rate
Cap for such Distribution Date and (B) the Net Rate Carryover for such Class
for all previous Distribution Dates not previously paid pursuant to Section
4.04, together with interest thereon at the then-applicable Pass-Through Rate
for such Class, without giving effect to the applicable Net Rate Cap.

          Net Swap Payment: With respect to any Distribution Date and payment
by the Swap Contract Administrator to the Swap Counterparty, the excess, if
any, of the "Fixed Amount" (as defined in the Swap Contract) with respect to
such Distribution Date over the "Floating Amount" (as defined in the Swap
Contract) with respect to such Distribution Date. With respect to any
Distribution Date and payment by the Swap Counterparty to the Swap Contract
Administrator, the excess, if any, of the "Floating Amount" (as defined in the
Swap Contract) with respect to such Distribution Date over the "Fixed Amount"
(as defined in the Swap Contract) with respect to such Distribution Date

          NIM Insurer: Any insurer guarantying at the request of CHL certain
payments under notes backed or secured by the Class C or Class P Certificates.

          Nonrecoverable Advance: Any portion of an Advance previously made or
proposed to be made by the Master Servicer that, in the good faith judgment of
the Master Servicer, will not or, in the case of a current delinquency, would
not, be ultimately recoverable by the Master Servicer from the related
Mortgagor, related Liquidation Proceeds or otherwise.

          Non-United States Person: A Person that is not a citizen or resident
of the United States, a corporation, partnership, or other entity (treated as
a corporation or a partnership for federal income tax purposes) created or
organized in or under the laws of the United States, any


                                       33
<PAGE>


state thereof or the District of Columbia, an estate whose income from sources
without the United States is includible in gross income for United States
federal income tax purposes regardless of its connection with the conduct of a
trade or business within the United States, or a trust if a court within the
United States is able to exercise primary supervision over the administration
of the trust and one or more United States persons have authority to control
all substantial decisions of the trustor.

          OC Floor: With respect to any Distribution Date, an amount equal to
0.50% of the sum of the aggregate Cut-off Date Principal Balance of the
Initial Mortgage Loans and the Pre-Funded Amount.

          Officer's Certificate: A certificate (i) in the case of the
Depositor, signed by the Chairman of the Board, the Vice Chairman of the
Board, the President, a Managing Director, a Vice President (however
denominated), an Assistant Vice President, the Treasurer, the Secretary, or
one of the Assistant Treasurers or Assistant Secretaries of the Depositor,
(ii) in the case of the Master Servicer, signed by the President, an Executive
Vice President, a Vice President, an Assistant Vice President, the Treasurer,
or one of the Assistant Treasurers or Assistant Secretaries of Countrywide GP,
Inc., its general partner, (iii) if provided for in this Agreement, signed by
a Servicing Officer, as the case may be, and delivered to the Depositor and
the Trustee, as the case may be, as required by this Agreement, or (iv) in the
case of any other Person, signed by an authorized officer of such Person.

          One-Month LIBOR: With respect to any Accrual Period for the
Interest-Bearing Certificates, the rate determined by the Trustee on the
related Interest Determination Date on the basis of the rate for U.S. dollar
deposits for one month as quoted on the Bloomberg Terminal on such Interest
Determination Date; provided that the parties hereto acknowledge that
One-Month LIBOR calculated for the first Accrual Period for the
Interest-Bearing Certificates shall equal 5.32000% per annum. If such rate is
not quoted on the Bloomberg Terminal (or if such service is no longer offered,
such other service for displaying One-Month LIBOR or comparable rates as may
be reasonably selected by the Trustee), One-Month LIBOR for the applicable
Accrual Period for the Interest-Bearing Certificates will be the Reference
Bank Rate. If no such quotations can be obtained by the Trustee and no
Reference Bank Rate is available, One-Month LIBOR will be One-Month LIBOR
applicable to the preceding Accrual Period for the Interest-Bearing
Certificates.

          Opinion of Counsel: A written opinion of counsel, who may be counsel
for the Depositor or the Master Servicer, reasonably acceptable to each
addressee of such opinion; provided that with respect to Section 6.04 or
10.01, or the interpretation or application of the REMIC Provisions, such
counsel must (i) in fact be independent of the Depositor and the Master
Servicer, (ii) not have any direct financial interest in the Depositor or the
Master Servicer or in any affiliate of either and (iii) not be connected with
the Depositor or the Master Servicer as an officer, employee, promoter,
underwriter, trustee, partner, director or person performing similar
functions.

          Optional Termination: The termination of the Trust Fund pursuant to
clause (a) of the first sentence of Section 9.01.


                                      34
<PAGE>


          Optional Termination Date: The first Distribution Date on which the
aggregate Stated Principal Balance of the Mortgage Loans is less than or equal
to 10% of the sum of the aggregate Cut-off Date Principal Balance of the
Initial Mortgage Loans and the Pre-Funded Amount.

          Original Value: The value of the property underlying a Mortgage Loan
based, in the case of the purchase of the underlying Mortgaged Property, on
the lower of an appraisal satisfactory to the Master Servicer or the sales
price of such property or, in the case of a refinancing, on an appraisal
satisfactory to the Master Servicer.

          OTS: The Office of Thrift Supervision.

          Outstanding: With respect to the Certificates as of any date of
determination, all Certificates theretofore executed and authenticated under
this Agreement except:

               (i) Certificates theretofore canceled by the Trustee or
          delivered to the Trustee for cancellation; and

               (ii) Certificates in exchange for which or in lieu of which
          other Certificates have been executed and delivered by the Trustee
          pursuant to this Agreement.

          Outstanding Mortgage Loan: As of any Distribution Date, a Mortgage
Loan with a Stated Principal Balance greater than zero that was not the
subject of a Principal Prepayment in full, and that did not become a
Liquidated Mortgage Loan, prior to the end of the related Prepayment Period.

          Overcollateralization Deficiency Amount: With respect to any
Distribution Date, the amount, if any, by which the Overcollateralization
Target Amount exceeds the Overcollateralized Amount on such Distribution Date
(after giving effect to distribution of the Principal Distribution Amount
(other than the portion thereof consisting of the Extra Principal Distribution
Amount) on such Distribution Date).

          Overcollateralization Reduction Amount: With respect to any
Distribution Date, an amount equal to the lesser of (i) the Excess
Overcollateralization Amount for such Distribution Date and (ii) the aggregate
Principal Remittance Amount for Loan Group 1 and Loan Group 2 for such
Distribution Date.

          Overcollateralization Target Amount: With respect to any
Distribution Date (a) prior to the Stepdown Date, an amount equal to 1.75% of
the sum of the aggregate Cut-off Date Principal Balance of the Initial
Mortgage Loans and the Pre-Funded Amount and (b) on or after the Stepdown
Date, the greater of (i) an amount equal to 3.50% of the aggregate Stated
Principal Balance of the Mortgage Loans for the current Distribution Date and
(ii) the OC Floor; provided, however, that if a Trigger Event is in effect on
any Distribution Date, the Overcollateralization Target Amount will be the
Overcollateralization Target Amount as in effect for the prior Distribution
Date.


                                      35
<PAGE>


          Overcollateralized Amount: With respect to any Distribution Date,
the amount, if any, by which (x) the sum of the aggregate Stated Principal
Balance of the Mortgage Loans for such Distribution Date and any amount on
deposit in the Pre-Funding Account exceeds (y) the aggregate Certificate
Principal Balance of the Interest-Bearing Certificates as of such Distribution
Date (after giving effect to distribution of the Principal Remittance Amounts
to be made on such Distribution Date and, in the case of the Distribution Date
immediately following the end of the Funding Period, any amounts to be
released from the Pre-Funding Account).

          Ownership Interest: As to any Certificate, any ownership interest in
such Certificate including any interest in such Certificate as the Holder
thereof and any other interest therein, whether direct or indirect, legal or
beneficial.

          Park Monaco: Park Monaco Inc., a Delaware corporation, and its
successors and assigns.

          Park Monaco Mortgage Loans: The Mortgage Loans identified as such on
the Mortgage Loan Schedule for which Park Monaco is the applicable Seller.

          Park Sienna: Park Sienna LLC, a Delaware limited liability company,
and its successors and assigns.

          Park Sienna Mortgage Loans: The Mortgage Loans identified as such on
the Mortgage Loan Schedule for which Park Sienna is the applicable Seller.

          Pass-Through Margin: With respect to any Accrual Period and Class of
Interest-Bearing Certificates, the per annum rate indicated in the following
table:

    -------------------------------------- --------------- -----------------
                                            Pass-Through      Pass-Through
                       Class                  Margin (1)        Margin (2)
    -------------------------------------- --------------- -----------------
    Class 1-A.........................           0.140%             0.280%
    -------------------------------------- --------------- -----------------
    Class 2-A-1.......................           0.050%             0.100%
    -------------------------------------- --------------- -----------------
    Class 2-A-2.......................           0.120%              0.240%
    -------------------------------------- --------------- -----------------
    Class 2-A-3.......................           0.150%             0.300%
    -------------------------------------- --------------- -----------------
    Class 2-A-4.......................           0.230%             0.460%
    -------------------------------------- --------------- -----------------
    Class M-1.........................           0.250%             0.375%
    -------------------------------------- --------------- -----------------
    Class M-2.........................           0.290%             0.435%
    -------------------------------------- --------------- -----------------
    Class M-3.........................           0.340%             0.510%
     -------------------------------------- --------------- -----------------
    Class M-4.........................           0.380%             0.570%
    -------------------------------------- --------------- -----------------
    Class M-5.........................           0.400%             0.600%
    -------------------------------------- --------------- -----------------
    Class M-6.........................           0.500%             0.750%
    -------------------------------------- --------------- -----------------
    Class M-7.........................           0.900%             1.350%
    -------------------------------------- --------------- -----------------
    Class M-8.........................           1.600%             2.400%
    -------------------------------------- --------------- -----------------
    Class M-9.........................           1.750%             2.625%
    -------------------------------------- --------------- -----------------
    Class B...........................           1.750%             2.625%
    -------------------------------------- --------------- -----------------


                                      36
<PAGE>


(1)   For any Accrual Period relating to any Distribution Date occurring on or
     prior to the Optional Termination Date.
(2)   For any Accrual Period relating to any Distribution Date occurring after
     the Optional Termination Date.

          Pass-Through Rate: With respect to any Accrual Period and each Class
of Interest-Bearing Certificates the lesser of (x) One-Month LIBOR for such
Accrual Period plus the Pass-Through Margin for such Class and Accrual Period
and (y) the applicable Net Rate Cap for such Class and the related
Distribution Date.

          Percentage Interest: With respect to any Interest-Bearing
Certificate, a fraction, expressed as a percentage, the numerator of which is
the Certificate Principal Balance represented by such Certificate and the
denominator of which is the aggregate Certificate Principal Balance of the
related Class. With respect to the Class C, Class P and Class A-R
Certificates, the portion of the Class evidenced thereby, expressed as a
percentage, as stated on the face of such Certificate.

          Performance Certification: As defined in Section 11.05.

          Permitted Investments: At any time, any one or more of the following
obligations and securities:

               (i) obligations of the United States or any agency thereof,
          provided such obligations are backed by the full faith and credit of
           the United States;

               (ii) general obligations of or obligations guaranteed by any
          state of the United States or the District of Columbia receiving the
          highest long-term debt rating of each Rating Agency, or such lower
           rating as each Rating Agency has confirmed in writing is sufficient
          for the ratings originally assigned to the Certificates by such
          Rating Agency;

               (iii) commercial or finance company paper which is then
           receiving the highest commercial or finance company paper rating of
          each Rating Agency, or such lower rating as each Rating Agency has
          confirmed in writing is sufficient for the ratings originally
          assigned to the Certificates by such Rating Agency;

               (iv) certificates of deposit, demand or time deposits, or
          bankers' acceptances issued by any depository institution or trust
          company incorporated under the laws of the United States or of any
           state thereof and subject to supervision and examination by federal
          and/or state banking authorities, provided that the commercial paper
          and/or long term unsecured debt obligations of such depository
          institution or trust company (or in the case of the principal
          depository institution in a holding company system, the commercial
          paper or long-term unsecured debt obligations of such holding
          company, but only if Moody's is not a Rating Agency) are then rated
          one of the two highest long-term and the highest short-term ratings
          of each such Rating Agency for such securities, or such lower
          ratings as each Rating Agency has confirmed in writing is sufficient
          for the ratings originally assigned to the Certificates by such
          Rating Agency;


                                      37
<PAGE>


               (v) repurchase obligations with respect to any security
          described in clauses (i) and (ii) above, in either case entered into
          with a depository institution or trust company (acting as principal)
          described in clause (iv) above;

               (vi) securities (other than stripped bonds, stripped coupons or
          instruments sold at a purchase price in excess of 115% of the face
          amount thereof) bearing interest or sold at a discount issued by any
          corporation incorporated under the laws of the United States or any
          state thereof which, at the time of such investment, have one of the
          two highest long term ratings of each Rating Agency (except (x) if
          the Rating Agency is Moody's, such rating shall be the highest
          commercial paper rating of S&P for any such securities) and (y), or
          such lower rating as each Rating Agency has confirmed in writing is
          sufficient for the ratings originally assigned to the Certificates
          by such Rating Agency;

               (vii) interests in any money market fund which at the date of
          acquisition of the interests in such fund and throughout the time
          such interests are held in such fund has the highest applicable long
          term rating by each Rating Agency or such lower rating as each
          Rating Agency has confirmed in writing is sufficient for the ratings
          originally assigned to the Certificates by such Rating Agency;

               (viii) short term investment funds sponsored by any trust
          company or national banking association incorporated under the laws
          of the United States or any state thereof which on the date of
          acquisition has been rated by each Rating Agency in their respective
          highest applicable rating category or such lower rating as each
          Rating Agency has confirmed in writing is sufficient for the ratings
          originally assigned to the Certificates by such Rating Agency; and

               (ix) such other relatively risk free investments having a
          specified stated maturity and bearing interest or sold at a discount
          acceptable to each Rating Agency as will not result in the
          downgrading or withdrawal of the rating then assigned to the
          Certificates by any Rating Agency, as evidenced by a signed writing
          delivered by each Rating Agency, and reasonably acceptable to the
          NIM Insurer, as evidenced by a signed writing delivered by the NIM
          Insurer;

provided, that no such instrument shall be a Permitted Investment if such
instrument (i) evidences the right to receive interest only payments with
respect to the obligations underlying such instrument, (ii) is purchased at a
premium or (iii) is purchased at a deep discount; provided further that no
such instrument shall be a Permitted Investment (A) if such instrument
evidences principal and interest payments derived from obligations underlying
such instrument and the interest payments with respect to such instrument
provide a yield to maturity of greater than 120% of the yield to maturity at
par of such underlying obligations, or (B) if it may be redeemed at a price
below the purchase price (the foregoing clause (B) not to apply to investments
in units of money market funds pursuant to clause (vii) above); provided
further that no amount beneficially owned by any REMIC (including, without
limitation, any amounts collected by the Master Servicer but not yet deposited
in the Certificate Account) may be invested in investments (other than money
market funds) treated as equity interests for Federal income tax purposes,
unless the Master Servicer shall receive an Opinion of Counsel, at the expense
of Master


                                      38
<PAGE>


Servicer, to the effect that such investment will not adversely affect the
status of any such REMIC as a REMIC under the Code or result in imposition of
a tax on any such REMIC. Permitted Investments that are subject to prepayment
or call may not be purchased at a price in excess of par.

          Permitted Transferee: Any Person other than (i) the United States,
any State or political subdivision thereof, or any agency or instrumentality
of any of the foregoing, (ii) a foreign government, International Organization
or any agency or instrumentality of either of the foregoing, (iii) an
organization (except certain farmers' cooperatives described in section 521 of
the Code) that is exempt from tax imposed by Chapter 1 of the Code (including
the tax imposed by section 511 of the Code on unrelated business taxable
income) on any excess inclusions (as defined in section 860E(c)(1) of the
Code) with respect to any Class A-R Certificate, (iv) rural electric and
telephone cooperatives described in section 1381(a)(2)(C) of the Code, (v) an
"electing large partnership" as defined in section 775 of the Code, (vi) a
Person that is not a citizen or resident of the United States, a corporation,
partnership, or other entity (treated as a corporation or a partnership for
federal income tax purposes) created or organized in or under the laws of the
United States, any state thereof or the District of Columbia, or an estate
whose income from sources without the United States is includible in gross
income for United States federal income tax purposes regardless of its
connection with the conduct of a trade or business within the United States,
or a trust if a court within the United States is able to exercise primary
supervision over the administration of the trust and one or more United States
Persons have authority to control all substantial decisions of the trustor
unless such Person has furnished the transferor and the Trustee with a duly
completed Internal Revenue Service Form W-8ECI, and (vii) any other Person so
designated by the Trustee based upon an Opinion of Counsel that the Transfer
of an Ownership Interest in a Class A-R Certificate to such Person may cause
any REMIC formed hereunder to fail to qualify as a REMIC at any time that any
Certificates are Outstanding. The terms "United States," "State" and
"International Organization" shall have the meanings set forth in section 7701
of the Code or successor provisions. A corporation will not be treated as an
instrumentality of the United States or of any State or political subdivision
thereof for these purposes if all of its activities are subject to tax and,
with the exception of the Federal Home Loan Mortgage Corporation, a majority
of its board of directors is not selected by such government unit.

          Person: Any individual, corporation, partnership, limited liability
company, joint venture, association, joint-stock company, trust,
unincorporated organization or government, or any agency or political
subdivision thereof.

          Plan: An "employee benefit plan" as defined in section 3(3)of ERISA
that is subject to Title I of ERISA, a "plan" as defined in section 4975 of
the Code that is subject to section 4975 of the Code, or any Person investing
on behalf of or with plan assets (as defined in 29 CFR ss.2510.3-101 or
otherwise under ERISA) of such an employee benefit plan or plan.

          Pool Tax Cap: As defined in the Preliminary Statement.

          Pool Stated Principal Balance: The aggregate of the Stated Principal
Balances of the Mortgage Loans which were Outstanding Mortgage Loans.


                                       39
<PAGE>


          Pre-Funded Amount: The amount deposited in the Pre-Funding Account
on the Closing Date, which shall equal $236,305,037.98.

          Pre-Funding Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.05 in the name of the Trustee
for the benefit of the Certificateholders and designated "The Bank of New
York, in trust for registered holders of CWABS, Inc., Asset-Backed
Certificates, Series 2006-20." Funds in the Pre-Funding Account shall be held
in trust for the Certificateholders for the uses and purposes set forth in
this Agreement and shall not be a part of any REMIC created hereunder,
provided, however that any investment income earned from Permitted Investments
made with funds in the Pre-Funding Account will be for the account of CHL.

          Prepayment Assumption: The applicable rate of prepayment, as
described in the Prospectus Supplement relating to the Certificates.

          Prepayment Charge: With respect to any Mortgage Loan, the charges or
premiums, if any, due in connection with a full or partial prepayment of such
Mortgage Loan within the related Prepayment Charge Period in accordance with
the terms thereof (other than any Master Servicer Prepayment Charge Payment
Amount).

          Prepayment Charge Period: With respect to any Mortgage Loan, the
period of time during which a Prepayment Charge may be imposed.

          Prepayment Charge Schedule: As of the Initial Cut-off Date with
respect to each Initial Mortgage Loan and as of the Subsequent Cut-off Date
with respect to each Subsequent Mortgage Loan, a list attached hereto as
Schedule I (including the Prepayment Charge Summary attached thereto), setting
forth the following information with respect to each Prepayment Charge:

               (i) the Mortgage Loan identifying number;

               (ii) a code indicating the type of Prepayment Charge;

               (iii) the state of origination of the related Mortgage Loan;

               (iv) the date on which the first monthly payment was due on the
          related Mortgage Loan;

               (v) the term of the related Prepayment Charge; and

               (vi) the principal balance of the related Mortgage Loan as of
          the Cut-off Date.

          As of the Closing Date, the Prepayment Charge Schedule shall contain
the necessary information for each Initial Mortgage Loan. The Prepayment
Charge Schedule shall be amended by the Master Servicer upon the sale of any
Subsequent Mortgage Loans to the Trust Fund. In addition, the Prepayment
Charge Schedule shall be amended from time to time by the Master Servicer in
accordance with the provisions of this Agreement and a copy of each related


                                      40
<PAGE>


amendment shall be furnished by the Master Servicer to the Class P and Class C
Certificateholders and the NIM Insurer.

          Prepayment Interest Excess: With respect to any Distribution Date,
for each Mortgage Loan that was the subject of a Principal Prepayment during
the period from the related Due Date to the end of the related Prepayment
Period, any payment of interest received in connection therewith (net of any
applicable Servicing Fee) representing interest accrued for any portion of
such month of receipt.

          Prepayment Interest Shortfall: With respect to any Distribution
Date, for each Mortgage Loan that was the subject of a partial Principal
Prepayment or a Principal Prepayment in full during the period from the
beginning of the related Prepayment Period to the Due Date in such Prepayment
Period (other than a Principal Prepayment in full resulting from the purchase
of a Mortgage Loan pursuant to Section 2.02, 2.03, 2.04, 3.12 or 9.01 hereof)
and for each Mortgage Loan that became a Liquidated Mortgage Loan during the
related Due Period, the amount, if any, by which (i) one month's interest at
the applicable Net Mortgage Rate on the Stated Principal Balance of such
Mortgage Loan immediately prior to such prepayment (or liquidation) or in the
case of a partial Principal Prepayment on the amount of such prepayment (or
Liquidation Proceeds) exceeds (ii) the amount of interest paid or collected in
connection with such Principal Prepayment or such Liquidation Proceeds.

          Prepayment Period: As to any Distribution Date and related Due Date,
the period beginning with the opening of business on the sixteenth day of the
calendar month preceding the month in which such Distribution Date occurs (or,
with respect to the first Distribution Date, the period beginning with the
opening of business on October 2, 2006) and ending on the close of business on
the fifteenth day of the month in which such Distribution Date occurs.

          Prime Rate: The prime commercial lending rate of The Bank of New
York, as publicly announced to be in effect from time to time. The Prime Rate
shall be adjusted automatically, without notice, on the effective date of any
change in such prime commercial lending rate. The Prime Rate is not
necessarily The Bank of New York's lowest rate of interest.

          Principal Distribution Amount: With respect to each Distribution
Date and a Loan Group, the sum of (i) the Principal Remittance Amount for such
Loan Group for such Distribution Date less any portion of such amount used to
cover any payment due to the Swap Counterparty with respect to such
Distribution Date pursuant to Section 4.09, (ii) the Extra Principal
Distribution Amount for such Loan Group for such Distribution Date, and (iii)
with respect to the Distribution Date immediately following the end of the
Funding Period, the amount, if any, remaining in the Pre-Funding Account at
the end of the Funding Period (net of any investment income therefrom)
allocable to such Loan Group, minus (iv) (a) the amount of any Group 1
Overcollateralization Reduction Amount, in the case of Loan Group 1 and (b)
the amount of any Group 2 Overcollateralization Reduction Amount, in the case
of Loan Group 2.

          Principal Prepayment: Any Mortgagor payment or other recovery of (or
proceeds with respect to) principal on a Mortgage Loan (including loans
purchased or repurchased under Sections 2.02, 2.03, 2.04, 3.12 and 9.01
hereof) that is received in advance of its scheduled Due Date to the extent it
is not accompanied by an amount as to interest representing scheduled


                                      41
<PAGE>


interest due on any date or dates in any month or months subsequent to the
month of prepayment. Partial Principal Prepayments shall be applied by the
Master Servicer in accordance with the terms of the related Mortgage Note.

          Principal Remittance Amount: With respect to the Mortgage Loans in
each Loan Group and any Distribution Date, (a) the sum, without duplication,
of: (i) the scheduled principal collected with respect to the Mortgage Loans
during the related Due Period or advanced with respect to such Distribution
Date, (ii) Principal Prepayments collected in the related Prepayment Period,
with respect to the Mortgage Loans, (iii) the Stated Principal Balance of each
Mortgage Loan that was repurchased by a Seller or purchased by the Master
Servicer with respect to such Distribution Date, (iv) the amount, if any, by
which the aggregate unpaid principal balance of any Replacement Mortgage Loans
delivered by the Sellers in connection with a substitution of a Mortgage Loan
is less than the aggregate unpaid principal balance of any Deleted Mortgage
Loans and (v) all Liquidation Proceeds (to the extent such Liquidation
Proceeds related to principal) and Subsequent Recoveries collected during the
related Due Period; less (b) all Advances relating to principal and certain
expenses reimbursable pursuant to Section 6.03 and reimbursed during the
related Due Period, in each case with respect to such Loan Group.

          Principal Reserve Fund: The separate Eligible Account created and
initially maintained by the Trustee pursuant to Section 3.08 in the name of
the Trustee for the benefit of the Certificateholders and designated "The Bank
of New York in trust for registered Holders of CWABS, Inc., Asset-Backed
Certificates, Series 2006-20". Funds in the Principal Reserve Fund shall be
held in trust for the Certificateholders for the uses and purposes set forth
in this Agreement.

          Private Certificates: The Class B, Class C and Class P Certificates.

          Prospectus: The prospectus dated August 28, 2006, relating to
asset-backed securities to be sold by the Depositor.

          Prospectus Supplement: The prospectus supplement dated November 7,
2006, relating to the public offering of the certain Classes of Certificates
offered thereby.

          PTCE 95-60: As defined in Section 5.02(b).

          PUD: A Planned Unit Development.

          Purchase Price: With respect to any Mortgage Loan (x) required to be
(1) repurchased by a Seller or purchased by the Master Servicer, as
applicable, pursuant to Section 2.02, 2.03 or 3.12 hereof or (2) repurchased
by the Depositor pursuant to Section 2.04 hereof, or (y) that the Master
Servicer has a right to purchase pursuant to Section 3.12 hereof, an amount
equal to the sum of (i) 100% of the unpaid principal balance (or, if such
purchase or repurchase, as the case may be, is effected by the Master
Servicer, the Stated Principal Balance) of the Mortgage Loan as of the date of
such purchase, (ii) accrued interest thereon at the applicable Mortgage Rate
(or, if such purchase or repurchase, as the case may be, is effected by the
Master Servicer, at the Net Mortgage Rate) from (a) the date through which
interest was last paid by the Mortgagor (or, if such purchase or repurchase,
as the case may be, is effected by the Master Servicer, the date through which
interest was last advanced and not reimbursed by the Master


                                      42
<PAGE>


Servicer) to (b) the Due Date in the month in which the Purchase Price is to
be distributed to Certificateholders and (iii) any costs, expenses and damages
incurred by the Trust Fund resulting from any violation of any predatory or
abusive lending law in connection with such Mortgage Loan.

           Qualified Bidder: With respect to any auction pursuant to Section
9.04, any institution that is a regular purchaser and/or seller in the
secondary market of residential mortgage loans as determined by the Trustee
(or any advisor on its behalf), in its sole discretion, and any holder of an
interest in the Class C Certificates; provided, however, that neither CHL nor
any of its affiliates shall constitute a Qualified Bidder.

          Rating Agency: Each of Moody's and S&P. If any such organization or
its successor is no longer in existence, "Rating Agency" shall be a nationally
recognized statistical rating organization, or other comparable Person,
identified as a "Rating Agency" in the Underwriter's Exemption and designated
by the Depositor, notice of which designation shall be given to the Trustee.
References herein to a given rating category of a Rating Agency shall mean
such rating category without giving effect to any modifiers.

          Realized Loss: With respect to each Liquidated Mortgage Loan, an
amount (not less than zero or more than the Stated Principal Balance of the
Mortgage Loan) as of the date of such liquidation, equal to (i) the Stated
Principal Balance of such Liquidated Mortgage Loan as of the date of such
liquidation, minus (ii) the Liquidation Proceeds, if any, received in
connection with such liquidation during the month in which such liquidation
occurs, to the extent applied as recoveries of principal of the Liquidated
Mortgage Loan. With respect to each Mortgage Loan that has become the subject
of a Deficient Valuation, (i) if the value of the related Mortgaged Property
was reduced below the principal balance of the related Mortgage Note, the
amount by which the value of the Mortgaged Property was reduced below the
principal balance of the related Mortgage Note, and (ii) if the principal
amount due under the related Mortgage Note has been reduced, the difference
between the principal balance of the Mortgage Loan outstanding immediately
prior to such Deficient Valuation and the principal balance of the Mortgage
Loan as reduced by the Deficient Valuation.

          Record Date: With respect to any Distribution Date and the
Interest-Bearing Certificates, the Business Day immediately preceding such
Distribution Date, or if any such Certificates are no longer Book-Entry
Certificates, the Record Date with respect to such Certificates shall be the
last Business Day of the month preceding the month of such Distribution Date.
With respect to any Distribution Date and the Class A-R, Class C and Class P
Certificates and the first Distribution Date, the Closing Date, and with
respect to any other Distribution Date, the last Business Day of the month
preceding the month of such Distribution Date.

          Reference Bank Rate: With respect to any Accrual Period, the
arithmetic mean (rounded upwards, if necessary, to the nearest whole multiple
of 0.03125%) of the offered rates for United States dollar deposits for one
month that are quoted by the Reference Banks as of 11:00 a.m., New York City
time, on the related Interest Determination Date to prime banks in the London
interbank market for a period of one month in amounts approximately equal to
the outstanding aggregate Certificate Principal Balance of the
Interest-Bearing Certificates on such Interest Determination Date, provided
that at least two such Reference Banks provide such rate.


                                      43
<PAGE>


If fewer than two offered rates appear, the Reference Bank Rate will be the
arithmetic mean (rounded upwards, if necessary, to the nearest whole multiple
of 0.03125%) of the rates quoted by one or more major banks in New York City,
selected by the Trustee, as of 11:00 a.m., New York City time, on such date
for loans in U.S. dollars to leading European banks for a period of one month
in amounts approximately equal to the aggregate Certificate Principal Balance
of the Interest-Bearing Certificates on such Interest Determination Date.

          Reference Banks: Barclays Bank PLC, Deutsche Bank and NatWest, N.A.,
provided that if any of the foregoing banks are not suitable to serve as a
Reference Bank, then any leading banks selected by the Trustee which are
engaged in transactions in Eurodollar deposits in the international
Eurocurrency market (i) with an established place of business in London,
England, (ii) not controlling, under the control of or under common control
with the Depositor, CHL or the Master Servicer and (iii) which have been
designated as such by the Trustee.

          Refinancing Mortgage Loan: Any Mortgage Loan originated in
connection with the refinancing of an existing mortgage loan.

          Regular Certificate: Any Certificate other than the Class A-R
Certificates.

          Regulation AB: Subpart 229.1100 - Asset Backed Securities
(Regulation AB), 17 C.F.R. ss.ss.229.1100-229.1123, as such may be amended
from time to time, and subject to such clarification and interpretation as
have been provided by the Commission in the adopting release (Asset-Backed
Securities, Securities Act Release No. 33-8518, 70 Fed. Reg. 1,506, 1,531
(Jan. 7, 2005)) or by the staff of the Commission, or as may be provided by
the Commission or its staff from time to time and publicly available.

          Relief Act: The Servicemembers Civil Relief Act.

          REMIC Provisions: Provisions of the federal income tax law relating
to real estate mortgage investment conduits which appear at section 860A
through 860G of Subchapter M of Chapter 1 of the Code, and related provisions,
and regulations and rulings promulgated thereunder, as the foregoing may be in
effect from time to time.

          Remittance Report: A report prepared by the Master Servicer and
delivered to the Trustee and the NIM Insurer in accordance with Section 4.04.

          REO Property: A Mortgaged Property acquired by the Master Servicer
through foreclosure or deed-in-lieu of foreclosure in connection with a
defaulted Mortgage Loan.

          Replacement Mortgage Loan: A Mortgage Loan substituted by a Seller
for a Deleted Mortgage Loan which must, on the date of such substitution, as
confirmed in a Request for File Release, (i) have a Stated Principal Balance,
after deduction of the principal portion of the Scheduled Payment due in the
month of substitution, not in excess of, and not less than 90% of the Stated
Principal Balance of the Deleted Mortgage Loan; (ii) with respect to any Fixed
Rate Mortgage Loan, have a Mortgage Rate not less than or no more than 1% per
annum higher than the Mortgage Rate of the Deleted Mortgage Loan and, with
respect to any Adjustable Rate Mortgage Loan: (a) have a Maximum Mortgage Rate
no more than 1% per annum higher or


                                      44
<PAGE>


lower than the Maximum Mortgage Rate of the Deleted Mortgage Loan; (b) have a
Minimum Mortgage Rate no more than 1% per annum higher or lower than the
Minimum Mortgage Rate of the Deleted Mortgage Loan; (c) have the same Index
and intervals between Adjustment Dates as that of the Deleted Mortgage Loan;
(d) have a Gross Margin not more than 1% per annum higher or lower than that
of the Deleted Mortgage Loan; and (e) have an Initial Periodic Rate Cap and a
Subsequent Periodic Rate Cap each not more than 1% lower than that of the
Deleted Mortgage Loan; (iii) have the same or higher credit quality
characteristics than that of the Deleted Mortgage Loan; (iv) be accruing
interest at a rate not more than 1% per annum higher or lower than that of the
Deleted Mortgage Loan; (v) have a Loan-to-Value Ratio no higher than that of
the Deleted Mortgage Loan; (vi) have a remaining term to maturity not greater
than (and not more than one year less than) that of the Deleted Mortgage Loan;
(vii) not permit conversion of the Mortgage Rate from a fixed rate to a
variable rate or vice versa; (viii) provide for a Prepayment Charge on terms
substantially similar to those of the Prepayment Charge, if any, of the
Deleted Mortgage Loan; (ix) have the same occupancy type and lien priority as
the Deleted Mortgage Loan; (x) be covered by the applicable Mortgage Insurance
Policy if the Deleted Mortgage Loan was covered by such Mortgage Insurance
Policy and (xi) comply with each representation and warranty set forth in
Section 2.03 as of the date of substitution; provided, however, that
notwithstanding the foregoing, to the extent that compliance with clause (x)
of this definition would cause a proposed Replacement Mortgage Loan to fail to
comply with one or more of clauses (i), (ii), (iv), (viii) and/or (ix) of this
definition, then such proposed Replacement Mortgage Loan must comply with
clause (x) and need not comply with one or more of clauses (i), (ii), (iv),
(viii) and/or (ix), to the extent, and only to the extent, necessary to assure
that the Replacement Mortgage Loan otherwise complies with clause (x).

          Reportable Event: Any event required to be reported on Form 8-K, and
in any event, the following:

          (a) entry into a definitive agreement related to the Trust Fund, the
Certificates or the Mortgage Loans, or an amendment to a Transaction Document,
even if the Depositor is not a party to such agreement (e.g., a servicing
agreement with a servicer contemplated by Item 1108(a)(3)of Regulation AB);

          (b) termination of a Transaction Document (other than by expiration
of the agreement on its stated termination date or as a result of all parties
completing their obligations under such agreement), even if the Depositor is
not a party to such agreement (e.g., a servicing agreement with a servicer
contemplated by Item 1108(a)(3)of Regulation AB);

          (c) with respect to the Master Servicer only, if the Master Servicer
becomes aware of any bankruptcy or receivership with respect to CHL, the
Depositor, the Master Servicer, any Subservicer, the Trustee, the Swap
Counterparty, any enhancement or support provider contemplated by Items
1114(b) or 1115 of Regulation AB, or any other material party contemplated by
Item 1101(d)(1) of Regulation AB;

          (d) with respect to the Trustee, the Master Servicer and the
Depositor only, the occurrence of an early amortization, performance trigger
or other event, including an Event of Default under this Agreement;


                                      45
<PAGE>


          (e) any amendment to this Agreement;

          (f) the resignation, removal, replacement, substitution of the
Master Servicer, any Subservicer, the Trustee or any co-trustee;

          (g) with respect to the Master Servicer only, if the Master Servicer
becomes aware that (i) any material enhancement or support specified in Item
1114(a)(1) through (3)of Regulation AB or Item 1115 of Regulation AB that was
previously applicable regarding one or more classes of the Certificates has
terminated other than by expiration of the contract on its stated termination
date or as a result of all parties completing their obligations under such
agreement; (ii) any material enhancement specified in Item 1114(a)(1) through
(3)of Regulation AB or Item 1115 of Regulation AB has been added with respect
to one or more classes of the Certificates; or (iii) any existing material
enhancement or support specified in Item 1114(a)(1) through (3)of Regulation
AB or Item 1115 of Regulation AB with respect to one or more classes of the
Certificates has been materially amended or modified; and

          (h) with respect to the Trustee, the Master Servicer and the
Depositor only, a required distribution to Holders of the Certificates is not
made as of the required Distribution Date under this Agreement.

          Reporting Subcontractor: With respect to the Master Servicer or the
Trustee, any Subcontractor determined by such Person pursuant to Section
11.08(b) to be "participating in the servicing function" within the meaning of
Item 1122 of Regulation AB. References to a Reporting Subcontractor shall
refer only to the Subcontractor of such Person and shall not refer to
Subcontractors generally.

          Representing Party: As defined in Section 2.03(e).

          Request for Document Release: A Request for Document Release
submitted by the Master Servicer to the Co-Trustee, substantially in the form
of Exhibit M.

          Request for File Release: A Request for File Release submitted by
the Master Servicer to the Co-Trustee, substantially in the form of Exhibit N.

          Required Carryover Reserve Fund Deposit: With respect to any
Distribution Date, an amount equal to the excess of (i) $1,000 over (ii) the
amount of funds on deposit in the Carryover Reserve Fund after all other
deposits and withdrawals from such account on such Distribution Date.

          Required Insurance Policy: With respect to any Mortgage Loan, any
insurance policy that is required to be maintained from time to time under
this Agreement, including the applicable Mortgage Insurance Policy with
respect to a Covered Mortgage Loan.

          Responsible Officer: When used with respect to the Trustee, any Vice
President, any Assistant Vice President, the Secretary, any Assistant
Secretary, any Trust Officer or any other officer of the Trustee customarily
performing functions similar to those performed by any of the above designated
officers and also to whom, with respect to a particular matter, such


                                      46
<PAGE>


matter is referred because of such officer's knowledge of and familiarity with
the particular subject.

          Rolling Sixty-Day Delinquency Rate: With respect to any Distribution
Date on or after the Stepdown Date and any Loan Group or Loan Groups, the
average of the Sixty-Day Delinquency Rates for such Loan Group or Loan Groups
and such Distribution Date and the two immediately preceding Distribution
Dates.

          Rule 144A: Rule 144A under the Securities Act.

          Rule 144A Letter: As defined in Section 5.02(b).

          S&P: Standard & Poor's Ratings Services, a division of The
McGraw-Hill Companies, Inc. and its successors.

          Sarbanes-Oxley Certification: As defined in Section 11.05.

          Scheduled Payment: With respect to any Mortgage Loan, the scheduled
monthly payment of principal and/or interest due on any Due Date on such
Mortgage Loan which is payable by the related Mortgagor from time to time
under the related Mortgage Note, determined: (a) after giving effect to (i)
any Deficient Valuation and/or Debt Service Reduction with respect to such
Mortgage Loan and (ii) any reduction in the amount of interest collectible
from the related Mortgagor pursuant to the Relief Act or any similar state or
local law; (b) without giving effect to any extension granted or agreed to by
the Master Servicer pursuant to Section 3.05(a); and (c) on the assumption
that all other amounts, if any, due under such Mortgage Loan are paid when
due.

          Securities Act: The Securities Act of 1933, as amended.

          Sellers: CHL, in its capacity as seller of the CHL Mortgage Loans to
the Depositor, Park Monaco, in its capacity as seller of the Park Monaco
Mortgage Loans to the Depositor and Park Sienna, in its capacity as seller of
the Park Sienna Mortgage Loans to the Depositor.

          Seller Shortfall Interest Requirement: With respect to the
Distribution Date in each of November 2006, December 2006 and January 2007, is
the sum of:

          (a) the product of: (1) the excess of the aggregate Stated Principal
Balance for such Distribution Date of all the Mortgage Loans in the Mortgage
Pool (including the Subsequent Mortgage Loans, if any) owned by the Trust Fund
at the beginning of the related Due Period, over the aggregate Stated
Principal Balance for such Distribution Date of such Mortgage Loans (including
such Subsequent Mortgage Loans, if any) that have a scheduled payment of
interest due in the related Due Period, and (2) a fraction, the numerator of
which is the weighted average Net Mortgage Rate of all the Mortgage Loans in
the Mortgage Pool (including such Subsequent Mortgage Loans, if any) (weighted
on the basis of the Stated Principal Balances thereof for such Distribution
Date) and the denominator of which is 12; and


                                      47
<PAGE>


          (b) the product of: (1) the amount on deposit in the Pre-Funding
Account at the beginning of the related Due Period, and (2) a fraction, the
numerator of which is the weighted average Net Mortgage Rate of the Mortgage
Loans (including Subsequent Mortgage Loans, if any) owned by the Trust Fund at
the beginning of the related Due Period (weighted on the basis of the Stated
Principal Balances thereof for such Distribution Date) and the denominator of
which is 12.

          Senior Certificates: The Class A and Class A-R Certificates.

          Senior Enhancement Percentage: With respect to a Distribution Date
on or after the Stepdown Date, the fraction (expressed as a percentage) (1)
the numerator of which is the excess of (a) the aggregate Stated Principal
Balance of the Mortgage Loans for the preceding Distribution Date over (b) (i)
before the Certificate Principal Balances of the Senior Certificates have been
reduced to zero, the sum of the Certificate Principal Balances of the Senior
Certificates, or (ii) after the Certificate Principal Balances of the Senior
Certificates have been reduced to zero, the Certificate Principal Balance of
the most senior Class of Subordinate Certificates outstanding, as of the
related Master Servicer Advance Date, and (2) the denominator of which is the
aggregate Stated Principal Balance of the Mortgage Loans for the preceding
Distribution Date.

          Servicing Advances: All customary, reasonable and necessary "out of
pocket" costs and expenses incurred in the performance by the Master Servicer
of its servicing obligations hereunder, including, but not limited to, the
cost of (i) the preservation, restoration and protection of a Mortgaged
Property, (ii) any enforcement or judicial proceedings, including
foreclosures, (iii) the management and liquidation of any REO Property and
(iv) compliance with the obligations under Section 3.10.

          Servicing Criteria: The "servicing criteria" set forth in Item
1122(d) of Regulation AB.

          Servicing Fee: As to each Mortgage Loan and any Distribution Date,
an amount equal to one month's interest at the Servicing Fee Rate on the
Stated Principal Balance of such Mortgage Loan for the preceding Distribution
Date or, in the event of any payment of interest that accompanies a Principal
Prepayment in full made by the Mortgagor, interest at the Servicing Fee Rate
on the Stated Principal Balance of such Mortgage Loan for the period covered
by such payment of interest.

          Servicing Fee Rate: With respect to each Mortgage Loan, 0.50% per
annum.

          Servicing Officer: Any officer of the Master Servicer involved in,
or responsible for, the administration and servicing of the Mortgage Loans
whose name and facsimile signature appear on a list of servicing officers
furnished to the Trustee by the Master Servicer on the Closing Date pursuant
to this Agreement, as such list may from time to time be amended.

          Sixty-Day Delinquency Rate: With respect to any Distribution Date on
or after the Stepdown Date, a fraction, expressed as a percentage, the
numerator of which is the aggregate Stated Principal Balance for such
Distribution Date of all Mortgage Loans 60 or more days delinquent as of the
close of business on the last day of the calendar month preceding such


                                      48
<PAGE>


Distribution Date (including Mortgage Loans in foreclosure, bankruptcy and REO
Properties) and the denominator of which is the aggregate Stated Principal
Balance for such Distribution Date of all Mortgage Loans.

          Stated Principal Balance: With respect to any Mortgage Loan or
related REO Property (i) as of the Cut-off Date, the unpaid principal balance
of the Mortgage Loan as of such date (before any adjustment to the
amortization schedule for any moratorium or similar waiver or grace period),
after giving effect to any partial prepayments or Liquidation Proceeds
received prior to such date and to the payment of principal due on or prior to
such date and irrespective any delinquency in payment by the related
Mortgagor, and (ii) as of any other Distribution Date, the Stated Principal
Balance of the Mortgage Loan as of its Cut-off Date, minus the sum of (a) the
principal portion of the Scheduled Payments (x) due with respect to such
Mortgage Loan during each Due Period ending prior to such Distribution Date
and (y) that were received by the Master Servicer as of the close of business
on the Determination Date related to such Distribution Date or with respect to
which Advances were made as of the Master Servicer Advance Date related to
such Distribution Date, (b) all Principal Prepayments with respect to such
Mortgage Loan received by the Master Servicer during each Prepayment Period
ending prior to such Distribution Date, (c) all Liquidation Proceeds collected
with respect to such Mortgage Loan during each Due Period ending prior to such
Distribution Date, to the extent applied by the Master Servicer as recoveries
of principal in accordance with Section 3.12 and (d) any Realized Loss
previously incurred in connection with a Deficient Valuation. The Stated
Principal Balance of any Mortgage Loan that becomes a Liquidated Mortgage Loan
will be zero on each date following the Due Period in which such Mortgage Loan
becomes a Liquidated Mortgage Loan. References herein to the Stated Principal
Balance of the Mortgage Loans at any time shall mean the aggregate Stated
Principal Balance of all Mortgage Loans in the Trust Fund as of such time, and
references herein to the Stated Principal Balance of a Loan Group at any time
shall mean the aggregate Stated Principal Balance of all Mortgage Loans in
such Loan Group at such time.

          Stepdown Date: The earlier to occur of (a) the Distribution Date
following the Distribution Date on which the aggregate Certificate Principal
Balance of the Senior Certificates is reduced to zero, and (b) the later to
occur of (x) the Distribution Date in November 2009 and (y) the first
Distribution Date on which the aggregate Certificate Principal Balance of the
Senior Certificates (after calculating anticipated distributions on such
Distribution Date) is less than or equal to 67.10% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date.


                                      49
<PAGE>


          Stepdown Target Subordination Percentage: For each Class of
Subordinate Certificates (other than the Class M-1, Class M-2 and Class M-3
Certificates), the respective percentage indicated in the following table:

                                                       Stepdown Target
                                                         Subordination
                                                          Percentage
                                                     ---------------------
Class M-4.................................                    14.50%
Class M-5.................................                    11.70%
Class M-6.................................                     9.60%
Class M-7.................................                     7.70%
Class M-8.................................                     6.20%
Class M-9.................................                     4.80%
Class B...................................                     3.50%

          Strip REMIC: As defined in the Preliminary Statement.

          Strip REMIC Cap: As defined in the Preliminary Statement.

          Subcontractor: Any vendor, subcontractor or other Person that is not
responsible for the overall servicing (as "servicing" is commonly understood
by participants in the mortgage-backed securities market) of Mortgage Loans
but performs one or more discrete functions identified in Item 1122(d) of
Regulation AB with respect to the Mortgage Loans under the direction or
authority of the Master Servicer or a Subservicer or the Trustee, as the case
may be.

          Subordinate Certificates: The Class M-1, Class M-2, Class M-3, Class
M-4, Class M-5, Class M-6, Class M-7, Class M-8, Class M-9 and Class B
Certificates.

          Subordinate Class Principal Distribution Amount: With respect to any
Distribution Date and any Class of Subordinate Certificates (other than the
Class M-1, Class M-2 and Class M-3 Certificates), the excess of (1) the sum of
(a) the aggregate Certificate Principal Balance of the Class A Certificates
(after taking into account distribution of the Class 1-A Principal
Distribution Amount and the Class 2-A Principal Distribution Amount for such
Distribution Date), (b) the aggregate Certificate Principal Balance of the
Class M-1, Class M-2 and Class M-3 Certificates (after taking into account
distribution of the Combined Class M-1, M-2 and M-3 Principal Distribution
Amount for such Distribution Date), (c) the aggregate Certificate Principal
Balance of any Classes of Subordinate Certificates (other than the Class M-1,
Class M-2 and Class M-3 Certificates) that are senior to the subject Class (in
each case, after taking into account distribution of the Subordinate Class
Principal Distribution Amount(s) for such senior Class(es) of Certificates for
such Distribution Date) and (d) the Certificate Principal Balance of the
subject Class of Subordinate Certificates immediately prior to such
Distribution Date over (2) the lesser of (a) the product of (x) 100% minus the
Stepdown Target Subordination Percentage for the subject Class of Certificates
and (y) the aggregate Stated Principal Balance of the Mortgage Loans for such
Distribution Date and (b) the aggregate Stated Principal Balance of the
Mortgage Loans for such Distribution Date minus the OC Floor; provided,
however, that if such Class of Subordinate Certificates is the only Class of
Subordinate Certificates outstanding


                                      50
<PAGE>


on such Distribution Date, that Class will be entitled to receive the entire
remaining Principal Distribution Amount for Loan Group 1 and Loan Group 2
until the Certificate Principal Balance thereof is reduced to zero.

          Subordinate Net Rate Cap: With respect to any Distribution Date and
each Class of Subordinate Certificates, the weighted average of the Class 1-A
Net Rate Cap and the Class 2-A Net Rate Cap, weighted on the basis of the
excess (if any) of the sum of the aggregate Stated Principal Balance of the
Mortgage Loans in the related Loan Group as of the first day of the related
Due Period (after giving effect to Principal Prepayments received during the
Prepayment Period that ends during such Due Period) and the amount on deposit
in the Pre-Funding Account in respect of that Loan Group as of the first day
of such Due Period over the Certificate Principal Balance of the related
Senior Certificates immediately prior to such Distribution Date.

          Subsequent Certificate Account Deposit: With respect to any
Subsequent Transfer Date, an amount equal to the aggregate of all amounts in
respect of (i) principal of the related Subsequent Mortgage Loans due after
the related Subsequent Cut-off Date and received by the Master Servicer on or
before such Subsequent Transfer Date and not applied in computing the Cut-off
Date Principal Balance thereof and (ii) interest on such Subsequent Mortgage
Loans due after such Subsequent Cut-off Date and received by the Master
Servicer on or before the Subsequent Transfer Date.

          Subsequent Cut-off Date: In the case of any Subsequent Mortgage
Loan, the later of (x) the first day of the month of the related Subsequent
Transfer Date and (y) the date of origination of such Subsequent Mortgage
Loan.

          Subsequent Mortgage Loan: Any Mortgage Loan conveyed to the Trustee
on a Subsequent Transfer Date, and listed on the related Loan Number and
Borrower Identification Mortgage Loan Schedule delivered pursuant to Section
2.01(f). When used with respect to a single Subsequent Transfer Date,
"Subsequent Mortgage Loan" shall mean a Subsequent Mortgage Loan conveyed to
the Trustee on such Subsequent Transfer Date.

          Subsequent Periodic Rate Cap: With respect to each Adjustable Rate
Mortgage Loan, the percentage specified in the related Mortgage Note that
limits permissible increases and decreases in the Mortgage Rate on any
Adjustment Date (other than the initial Adjustment Date).

          Subsequent Recoveries: As to any Distribution Date, with respect to
a Liquidated Mortgage Loan that resulted in a Realized Loss in a prior
calendar month, unexpected amounts received by the Master Servicer (net of any
related expenses permitted to be reimbursed pursuant to Section 3.08 and 3.12)
specifically related to such Liquidated Mortgage Loan after the classification
of such Mortgage Loan as a Liquidated Mortgage Loan.

          Subsequent Transfer Agreement: A Subsequent Transfer Agreement
substantially in the form of Exhibit P hereto, executed and delivered by the
Sellers, the Depositor and the Trustee as provided in Section 2.01(d).

          Subsequent Transfer Date: For any Subsequent Transfer Agreement, the
"Subsequent Transfer Date" identified in such Subsequent Transfer Agreement;
provided, however, the Subsequent Transfer Date for any Subsequent Transfer
Agreement must be a


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<PAGE>


Business Day and may not be a date earlier than the date on which the
Subsequent Transfer Agreement is executed and delivered by the parties thereto
pursuant to Section 2.01(d).

          Subsequent Transfer Date Purchase Amount: With respect to any
Subsequent Transfer Date, the "Subsequent Transfer Date Purchase Amount"
identified in the related Subsequent Transfer Agreement which shall be an
estimate of the aggregate Stated Principal Balances of the Subsequent Mortgage
Loans identified in such Subsequent Transfer Agreement.

          Subsequent Transfer Date Transfer Amount: With respect to any
Subsequent Transfer Date, an amount equal to the lesser of (i) the aggregate
Stated Principal Balances as of the related Subsequent Cut-off Dates of the
Subsequent Mortgage Loans conveyed on such Subsequent Transfer Date, as listed
on the related Loan Number and Borrower Identification Mortgage Loan Schedule
delivered pursuant to Section 2.01(f) and (ii) the amount on deposit in the
Pre-Funding Account.

          Subservicer: As defined in Section 3.02(a).

           Subservicing Agreement: As defined in Section 3.02(a).

          Substitution Adjustment Amount: The meaning ascribed to such term
pursuant to Section 2.03(e).

          Substitution Amount: With respect to any Mortgage Loan substituted
pursuant to Section 2.03(e), the excess of (x) the principal balance of the
Mortgage Loan that is substituted for, over (y) the principal balance of the
related substitute Mortgage Loan, each balance being determined as of the date
of substitution.

          Successful Auction: An auction held pursuant to Section 9.04 at
which at least three Qualified Bidders submitted bids and at least one of
those bids was an Acceptable Bid Amount.

          Swap Account: The separate Eligible Account created and initially
maintained by the Swap Trustee pursuant to Section 4.09.

          Swap Contract: The transaction evidenced by the Confirmation (as
assigned to the Swap Contract Administrator pursuant to the Swap Contract
Assignment Agreement), a form of which is attached hereto as Exhibit U.

          Swap Contract Administration Agreement: The swap contract
administration agreement dated as of the Closing Date among CHL, the Trustee
and the Swap Contract Administrator, a form of which is attached hereto as
Exhibit V-2.

           Swap Contract Administrator: The Bank of New York, in its capacity
as swap contract administrator under the Swap Contract Administration
Agreement and its successors and assigns.


                                      52
<PAGE>


          Swap Contract Assignment Agreement: The Assignment Agreement dated
as of the Closing Date among CHL, the Swap Contract Administrator and the Swap
Counterparty, a form of which is attached hereto as Exhibit V-1.

          Swap Contract Termination Date: The Distribution Date in October
2012.

          Swap Counterparty: Bear Stearns Financial Products Inc. and its
successors.

          Swap Counterparty Trigger Event: A Swap Termination Payment that is
triggered upon (i) an "Event of Default" under the Swap Contract with respect
to which the Swap Counterparty is the sole "Defaulting Party" (as defined in
the Swap Contract) or (ii) a "Termination Event" or "Additional Termination
Event" under the Swap Contract with respect to which the Swap Counterparty is
the sole "Affected Party" (as defined in the Swap Contract).

          Swap-IO REMIC: As defined in the Preliminary Statement.

          Swap Termination Payment: The payment payable to either party under
the Swap Contract due to an early termination of the Swap Contract.

          Swap Trust: The trust fund established by Section 4.09.

          Swap Trustee: The Bank of New York, a New York banking corporation,
not in its individual capacity, but solely in its capacity as trustee for the
benefit of the Holders of the Interest-Bearing Certificates under this
Agreement, and any successor thereto, and any corporation or national banking
association resulting from or surviving any consolidation or merger to which
it or its successors may be a party and any successor trustee as may from time
to time be serving as successor trustee hereunder.

          Tax Matters Person: The person designated as "tax matters person" in
the manner provided under Treasury regulation ss. 1.860F-4(d) and Treasury
regulation ss. 301.6231(a)(7)-1. Initially, this person shall be the Trustee.

          Tax Matters Person Certificate: With respect to the Master REMIC,
the Strip REMIC and the Swap-IO REMIC, the Class A-R Certificate with a
Denomination of $0.05 and in the form of Exhibit E hereto.

          Termination Price: As defined in Section 9.01.

          Terminator: As defined in Section 9.01.

          Three-Year Hybrid Mortgage Loan: A Mortgage Loan having a Mortgage
Rate that is fixed for 36 months after origination thereof before such
Mortgage Rate becomes subject to adjustment.

          Transaction Documents: This Agreement, the Swap Contract, the Swap
Contract Administration Agreement, each Mortgage Insurance Policy and any
other document or agreement entered into in connection with the Trust Fund,
the Certificates or the Mortgage Loans.


                                      53
<PAGE>


          Transfer: Any direct or indirect transfer or sale of any Ownership
Interest in a Certificate.

          Transfer Affidavit: As defined in Section 5.02(c).

          Transferor Certificate: As defined in Section 5.02(b).

          Trigger Event: With respect to any Distribution Date on or after the
Stepdown Date, either a Delinquency Trigger Event with respect to that
Distribution Date or a Cumulative Loss Trigger Event with respect to that
Distribution Date.

          Trust Fund: The corpus of the trust created hereunder consisting of
(i) the Mortgage Loans and all interest and principal received on or with
respect thereto after the Cut-off Date to the extent not applied in computing
the Cut-off Date Principal Balance thereof, exclusive of interest not required
to be deposited in the Certificate Account pursuant to Section 3.05(b)(2);
(ii) the Certificate Account, the Distribution Account, the Principal Reserve
Fund, the Carryover Reserve Fund, the Credit Comeback Excess Account, the
Pre-Funding Account and all amounts deposited therein pursuant to the
applicable provisions of this Agreement; (iii) property that secured a
Mortgage Loan and has been acquired by foreclosure, deed in lieu of
foreclosure or otherwise; (iv) the mortgagee's rights under the Insurance
Policies with respect to the Mortgage Loan; and (v) all proceeds of the
conversion, voluntary or involuntary, of any of the foregoing into cash or
other liquid property.

          Trustee: The Bank of New York, a New York banking corporation, not
in its individual capacity, but solely in its capacity as trustee for the
benefit of the Certificateholders under this Agreement, and any successor
thereto, and any corporation or national banking association resulting from or
surviving any consolidation or merger to which it or its successors may be a
party and any successor trustee as may from time to time be serving as
successor trustee hereunder.

          Trustee Advance Notice: As defined in Section 4.01(d).

          Trustee Advance Rate: With respect to any Advance made by the
Trustee pursuant to Section 4.01(d), a per annum rate of interest determined
as of the date of such Advance equal to the Prime Rate in effect on such date
plus 5.00%.

          Trustee Fee: As to any Distribution Date, an amount equal to
one-twelfth of the Trustee Fee Rate multiplied by the sum of (i) the Pool
Stated Principal Balance and (ii) any amounts remaining in the Pre-Funding
Account (excluding any investment earnings thereon) with respect to such
Distribution Date.

          Trustee Fee Rate: With respect to each Mortgage Loan, the per annum
rate agreed upon in writing on or prior to the Closing Date by the Trustee and
the Depositor, which is 0.009% per annum.

          Two-Year Hybrid Mortgage Loan: A Mortgage Loan having a Mortgage
Rate that is fixed for 24 months after origination thereof before such
Mortgage Rate becomes subject to adjustment.


                                      54
<PAGE>


          Underwriter's Exemption: Prohibited Transaction Exemption 2002-41,
67 Fed. Reg. 54487 (2002), as amended (or any successor thereto), or any
substantially similar administrative exemption granted by the U.S. Department
of Labor.

          Underwriters: Countrywide Securities Corporation, Bear, Stearns &
Co. Inc. and HSBC Securities (USA) Inc.

          Unpaid Realized Loss Amount: For any Class of Certificates and any
Distribution Date, (x) the portion of the aggregate Applied Realized Loss
Amount previously allocated to that Class remaining unpaid from prior
Distribution Dates minus (y) any increase in the Certificate Principal Balance
of that Class due to the allocation of Subsequent Recoveries to the
Certificate Principal Balance of that Class pursuant to Section 4.04(h).

          Voting Rights: The voting rights of all the Certificates that are
allocated to any Certificates for purposes of the voting provisions hereunder.
Voting Rights allocated to each Class of Certificates shall be allocated 97%
to the Certificates other than the Class A-R, Class C and Class P Certificates
(with the allocation among the Certificates to be in proportion to the
Certificate Principal Balance of each Class relative to the Certificate
Principal Balance of all other such Classes), and 1% to each of the Class A-R,
Class C and Class P Certificates. Voting Rights will be allocated among the
Certificates of each such Class in accordance with their respective Percentage
Interests.

          Winning Bidder: With respect to a Successful Auction, the Qualified
Bidder that bids the highest price.

          Section 1.02 Certain Interpretive Provisions.

          All terms defined in this Agreement shall have the defined meanings
when used in any certificate, agreement or other document delivered pursuant
hereto unless otherwise defined therein. For purposes of this Agreement and
all such certificates and other documents, unless the context otherwise
requires: (a) accounting terms not otherwise defined in this Agreement, and
accounting terms partly defined in this Agreement to the extent not defined,
shall have the respective meanings given to them under generally accepted
accounting principles; (b) the words "hereof," "herein" and "hereunder" and
words of similar import refer to this Agreement (or the certificate, agreement
or other document in which they are used) as a whole and not to any particular
provision of this Agreement (or such certificate, agreement or document); (c)
references to any Section, Schedule or Exhibit are references to Sections,
Schedules and Exhibits in or to this Agreement, and references to any
paragraph, subsection, clause or other subdivision within any Section or
definition refer to such paragraph, subsection, clause or other subdivision of
such Section or definition; (d) the term "including" means "including without
limitation"; (e) references to any law or regulation refer to that law or
regulation as amended from time to time and include any successor law or
regulation; (f) references to any agreement refer to that agreement as amended
from time to time; (g) references to any Person include that Person's
permitted successors and assigns; and (h) a Mortgage Loan is "30 days
delinquent" if a Scheduled Payment has not been received by the close of
business on the Due Date on which the next Scheduled Payment is due. Similarly
for "60 days delinquent," "90 days delinquent" and so on.


                                      55
<PAGE>


                                   ARTICLE II.
                         CONVEYANCE OF MORTGAGE LOANS;
                        REPRESENTATIONS AND WARRANTIES

          Section 2.01 Conveyance of Mortgage Loans.

          (a) Each Seller hereby sells, transfers, assigns, sets over and
otherwise conveys to the Depositor, without recourse, all the right, title and
interest of such Seller in and to the applicable Initial Mortgage Loans,
including all interest and principal received and receivable by such Seller on
or with respect to applicable Initial Mortgage Loans after the Initial Cut-off
Date (to the extent not applied in computing the Cut-off Date Principal
Balance thereof) or deposited into the Certificate Account by the Master
Servicer on behalf of such Seller as part of the Initial Certificate Account
Deposit as provided in this Agreement, other than principal due on the
applicable Initial Mortgage Loans on or prior to the Initial Cut-off Date and
interest accruing prior to the Initial Cut-off Date. The Master Servicer
confirms that, on behalf of the Sellers, concurrently with the transfer and
assignment, it has deposited into the Certificate Account the Initial
Certificate Account Deposit.

          Immediately upon the conveyance of the Initial Mortgage Loans
referred to in the preceding paragraph, the Depositor sells, transfers,
assigns, sets over and otherwise conveys to the Trustee for benefit of the
Certificateholders, without recourse, all right, title and interest in and to
the Initial Mortgage Loans.

           CHL further agrees (x) to cause The Bank of New York to enter into
the Swap Contract Administration Agreement as Swap Contract Administrator and
(y) to assign all of its right, title and interest in and to the interest rate
swap transaction evidenced by the Confirmation, and to cause all of its
obligations in respect of such transaction to be assumed by, the Swap Contract
Administrator, on the terms and conditions set forth in the Swap Contract
Assignment Agreement.

          (b) Subject to the execution and delivery of the related Subsequent
Transfer Agreement as provided by Section 2.01(d) and the terms and conditions
of this Agreement, each Seller sells, transfers, assigns, sets over and
otherwise conveys to the Depositor, without recourse, on each Subsequent
Transfer Date, all the right, title and interest of such Seller in and to the
related Subsequent Mortgage Loans, including all interest and principal
received and receivable by such Seller on or with respect to such Subsequent
Mortgage Loans after the related Subsequent Cut-off Date (to the extent not
applied in computing the Cut-off Date Principal Balance thereof) or deposited
into the Certificate Account by the Master Servicer on behalf of such Seller
as part of any related Subsequent Certificate Account Deposit as provided in
this Agreement, other than principal due on such Subsequent Mortgage Loans on
or prior to the related Subsequent Cut-off Date and interest accruing prior to
the related Subsequent Cut-off Date.

          Immediately upon the conveyance of the Subsequent Mortgage Loans
referred to in the preceding paragraph, the Depositor sells, transfers,
assigns, sets over and otherwise conveys to the Trustee for benefit of the
Certificateholders, without recourse, all right, title and interest in the
Subsequent Mortgage Loans.


                                      56
<PAGE>


          (c) Each Seller has entered into this Agreement in consideration for
the purchase of the Mortgage Loans by the Depositor and has agreed to take the
actions specified herein. The Depositor, concurrently with the execution and
delivery of this Agreement, hereby sells, transfers, assigns and otherwise
conveys to the Trustee for the use and benefit of the Certificateholders,
without recourse, all right, title and interest in the portion of the Trust
Fund not otherwise conveyed to the Trustee pursuant to Section 2.01(a) or (b).

          (d) On any Business Day during the Funding Period designated by CHL
to the Trustee, the Sellers, the Depositor and the Trustee shall complete,
execute and deliver a Subsequent Transfer Agreement. After the execution and
delivery of such Subsequent Transfer Agreement, on the Subsequent Transfer
Date, the Trustee shall set aside in the Pre-Funding Account an amount equal
to the related Subsequent Transfer Date Purchase Amount.

          (e) The transfer of Subsequent Mortgage Loans on the Subsequent
Transfer Date is subject to the satisfaction of each of the following
conditions:

               (1) the Trustee and the Underwriters will be provided Opinions
     of Counsel addressed to the Rating Agencies as with respect to the sale
     of the Subsequent Mortgage Loans conveyed on such Subsequent Transfer
     Date (such opinions being substantially similar to the opinions delivered
     on the Closing Date to the Rating Agencies with respect to the sale of
     the Initial Mortgage Loans on the Closing Date), to be delivered as
     provided in Section 2.01(f);

               (2) the execution and delivery of such Subsequent Transfer
     Agreement or conveyance of the related Subsequent Mortgage Loans does not
     result in a reduction or withdrawal of any ratings assigned to the
     Certificates by the Rating Agencies;

               (3) the Depositor shall deliver to the Trustee an Officer's
     Certificate confirming the satisfaction of each of the conditions set
     forth in this Section 2.01(e) required to be satisfied by such Subsequent
     Transfer Date;

               (4) each Subsequent Mortgage Loan conveyed on such Subsequent
     Transfer Date satisfies the representations and warranties applicable to
     it under this Agreement, provided, however, that with respect to a breach
     of a representation and warranty with respect to a Subsequent Mortgage
     Loan set forth in this clause (4), the obligation under Section 2.03(e)
     of this Agreement of the applicable Seller, to cure, repurchase or
     replace such Subsequent Mortgage Loan shall constitute the sole remedy
     against such Seller respecting such breach available to
     Certificateholders, the Depositor or the Trustee;

               (5) the Subsequent Mortgage Loans conveyed on such Subsequent
     Transfer Date were selected in a manner reasonably believed not to be
     adverse to the interests of the Certificateholders;

               (6) no Subsequent Mortgage Loan conveyed on such Subsequent
     Transfer Date was 30 or more days delinquent as of the related Cut-off
     Date;


                                      57
<PAGE>


                (7) following the conveyance of the Subsequent Mortgage Loans
     on such Subsequent Transfer Date, the characteristics of each Loan Group
     will not vary by more than the amount specified below (other than (i) the
     percentage of Mortgage Loans secured by Mortgaged Properties located in
     the State of California, which will not exceed 50% of the Mortgage Loans
     in each Loan Group and (ii) the percentage of Mortgage Loans in the
     Credit Grade Categories of "C" or below, which will not exceed 15% of the
     Mortgage Loans in each Loan Group) from the characteristics listed below;
     provided that for the purpose of making such calculations, the
     characteristics for any Initial Mortgage Loan made will be taken as of
     the Initial Cut-off Date and the characteristics for any Subsequent
     Mortgage Loans will be taken as of the Subsequent Cut-off Date:

<TABLE>
<CAPTION>

         Loan Group 1
         Characteristic                                                  Value              Permitted Variance
         -----------------------                                   -----------------    ------------------------
         <S>                                                           <C>                      <C>  
         Weighted Average Mortgage Rate.........................         8.471%                  0.10%
         Weighted Average Original Loan-to-Value Ratio..........         78.52%                  3.00%
         Weighted Average Credit Bureau Risk Score..............       590 points               5 points
         Percentage Originated under CHL's Full Documentation
         Program................................................         66.88%                  3.00%
         Weighted Average Gross Margin of Adjustable Rate
         Mortgage Loans.........................................         6.590%                  0.10%


         Loan Group 2
         Characteristic                                                  Value             Permitted Variance
         -----------------------                                    -----------------    ------------------------
         Weighted Average Mortgage Rate.........................         8.421%                  0.10%
         Weighted Average Original Loan-to-Value Ratio..........         80.55%                  3.00%
         Weighted Average Credit Bureau Risk Score..............       609 points               5 points
         Percentage Originated under CHL's Full Documentation
         Program................................................          59.49%                  3.00%
         Weighted Average Gross Margin of Adjustable Rate
         Mortgage Loans.........................................         6.748%                  0.10%

</TABLE>

               (8) none of the Sellers or the Depositor is insolvent and
     neither of the Sellers nor the Depositor will be rendered insolvent by
     the conveyance of Subsequent Mortgage Loans on such Subsequent Transfer
     Date; and

               (9) the Trustee and the Underwriters will be provided with an
     Opinion of Counsel, which Opinion of Counsel shall not be at the expense
     of either the Trustee or the Trust Fund, addressed to the Trustee, to the
     effect that such purchase of Subsequent Mortgage Loans will not (i)
     result in the imposition of the tax on "prohibited transactions" on the
     Trust Fund or contributions after the Startup Date, as defined in
     Sections 860F(a)(2) and 860G(d) of the Code, respectively or (ii) cause
     any REMIC


                                       58
<PAGE>


     formed hereunder to fail to qualify as a REMIC, such opinion to be
     delivered as provided in Section 2.01(f).

          The Trustee shall not be required to investigate or otherwise verify
compliance with these conditions, except for its own receipt of documents
specified above, and shall be entitled to rely on the required Officer's
Certificate.

          (f) Within six Business Days after each Subsequent Transfer Date,
upon (1) delivery to the Trustee by the Depositor of the Opinions of Counsel
referred to in Section 2.01(e)(1) and (e)(9), (2) delivery to the Trustee by
CHL (on behalf of each Seller) of a Loan Number and Borrower Identification
Mortgage Loan Schedule reflecting the Subsequent Mortgage Loans conveyed on
such Subsequent Transfer Date and the Loan Group into which each Subsequent
Mortgage Loan was conveyed, (3)deposit in the Certificate Account by the
Master Servicer on behalf of the Sellers of the applicable Subsequent
Certificate Account Deposit, and (4) delivery to the Trustee by the Depositor
of an Officer's Certificate confirming the satisfaction of each of the
conditions precedent set forth in this Section 2.01(f), the Trustee shall pay
the applicable Seller the Subsequent Transfer Date Transfer Amount from such
funds that were set aside in the Pre-Funding Account pursuant to Section
2.01(d). The positive difference, if any, between the Subsequent Transfer Date
Transfer Amount and the Subsequent Transfer Date Purchase Amount shall be
re-invested by the Trustee in the Pre-Funding Account.

          The Trustee shall not be required to investigate or otherwise verify
compliance with the conditions set forth in the preceding paragraph, except
for its own receipt of documents specified above, and shall be entitled to
rely on the required Officer's Certificate.

          Within thirty days after each Subsequent Transfer Date, the
Depositor shall deliver to the Trustee a letter of a nationally recognized
firm of independent public accountants stating whether or not the Subsequent
Mortgage Loans conveyed on such Subsequent Transfer Date conform to the
characteristics described in Section 2.01(e)(6) and (7).

          (g) In connection with the transfer and assignment of each Mortgage
Loan, the Depositor has delivered to, and deposited with, the Co-Trustee (or,
in the case of the Delay Delivery Mortgage Loans, will deliver to, and deposit
with, the Co-Trustee within the time periods specified in the definition of
Delay Delivery Mortgage Loans) (except as provided in clause (vi) below) for
the benefit of the Certificateholders, the following documents or instruments
with respect to each such Mortgage Loan so assigned (with respect to each
Mortgage Loan, clause (i) through (vi) below, together, the "Mortgage File"
for each such Mortgage Loan):

               (i) the original Mortgage Note, endorsed by manual or facsimile
          signature in blank in the following form: "Pay to the order of
          ________________ without recourse", with all intervening
          endorsements that show a complete chain of endorsement from the
          originator to the Person endorsing the Mortgage Note (each such
          endorsement being sufficient to transfer all right, title and
          interest of the party so endorsing, as noteholder or assignee
          thereof, in and to that Mortgage Note), or, if the original Mortgage
          Note has been lost or destroyed and not replaced, an original lost
          note affidavit, stating that the original Mortgage Note


                                       59
<PAGE>


          was lost or destroyed, together with a copy of the related Mortgage
          Note and all such intervening endorsements;

               (ii) in the case of each Mortgage Loan that is not a MERS
           Mortgage Loan, the original recorded Mortgage or a copy of such
          Mortgage, with recording information, and in the case of each MERS
          Mortgage Loan, the original Mortgage or a copy of such Mortgage,
          with recording information, noting the presence of the MIN of the
          Mortgage Loan and language indicating that the Mortgage Loan is a
          MOM Loan if the Mortgage Loan is a MOM Loan, with evidence of
          recording indicated thereon, or a copy of the Mortgage certified by
          the public recording office in which such Mortgage has been
          recorded;

               (iii) in the case of each Mortgage Loan that is not a MERS
          Mortgage Loan, a duly executed assignment of the Mortgage to
          "Asset-Backed Certificates, Series 2006-20, CWABS, Inc., by The Bank
          of New York, a New York banking corporation, as trustee under the
          Pooling and Servicing Agreement dated as of October 1, 2006, without
          recourse" or a copy of such assignment, with recording information,
          (each such assignment, when duly and validly completed, to be in
          recordable form and sufficient to effect the assignment of and
          transfer to the assignee thereof, under the Mortgage to which such
          assignment relates);

               (iv) the original recorded assignment or assignments of the
          Mortgage or a copy of such assignments, with recording information,
          together with all interim recorded assignments of such Mortgage or a
          copy of such assignments, with recording information (in each case
          noting the presence of a MIN in the case of each MERS Mortgage
          Loan);

               (v) the original or copies of each assumption, modification,
          written assurance or substitution agreement, if any; and

               (vi) the original or duplicate original lender's title policy
          or a copy of lender's title policy or a printout of the electronic
          equivalent and all riders thereto or, in the event such original
          title policy has not been received from the insurer, such original
          or duplicate original lender's title policy and all riders thereto
          shall be delivered within one year of the Closing Date.

          In addition, in connection with the assignment of any MERS Mortgage
Loan, each Seller agrees that it will cause, at such Seller's own expense, the
MERS(R) System to indicate (and provide evidence to the Trustee that it has
done so) that such Mortgage Loans have been assigned by such Seller to the
Trustee in accordance with this Agreement for the benefit of the
Certificateholders by including (or deleting, in the case of Mortgage Loans
which are repurchased in accordance with this Agreement) in such computer
files (a) the code "[IDENTIFY TRUSTEE SPECIFIC CODE]" in the field "[IDENTIFY
THE FIELD NAME FOR TRUSTEE]" which identifies the Trustee and (b) the code
"[IDENTIFY SERIES SPECIFIC CODE NUMBER]" in the field "Pool Field" which
identifies the series of the Certificates issued in connection with such
Mortgage Loans. The Sellers further agree that they will not, and will not
permit the Master Servicer to, and the Master Servicer agrees that it will


                                       60
<PAGE>


not, alter the codes referenced in this paragraph with respect to any Mortgage
Loan during the term of this Agreement unless and until such Mortgage Loan is
repurchased in accordance with the terms of this Agreement.

          In the event that in connection with any Mortgage Loan that is not a
MERS Mortgage Loan a Seller cannot deliver the original recorded Mortgage or
all interim recorded assignments of the Mortgage satisfying the requirements
of clause (ii), (iii) or (iv) concurrently with the execution and delivery
hereof, such Seller shall deliver or cause to be delivered to the Co-Trustee a
true copy of such Mortgage and of each such undelivered interim assignment of
the Mortgage each certified by such Seller, the applicable title company,
escrow agent or attorney, or the originator of such Mortgage, as the case may
be, to be a true and complete copy of the original Mortgage or assignment of
Mortgage submitted for recording. For any such Mortgage Loan that is not a
MERS Mortgage Loan each Seller shall promptly deliver or cause to be delivered
to the Co-Trustee such original Mortgage and such assignment or assignments
with evidence of recording indicated thereon upon receipt thereof from the
public recording official, or a copy thereof, certified, if appropriate, by
the relevant recording office, but in no event shall any such delivery be made
later than 270 days following the Closing Date; provided that in the event
that by such date such Seller is unable to deliver or cause to be delivered
each such Mortgage and each interim assignment by reason of the fact that any
such documents have not been returned by the appropriate recording office, or,
in the case of each interim assignment, because the related Mortgage has not
been returned by the appropriate recording office, such Seller shall deliver
or cause to be delivered such documents to the Co-Trustee as promptly as
possible upon receipt thereof. If the public recording office in which a
Mortgage or interim assignment thereof is recorded retains the original of
such Mortgage or assignment, a copy of the original Mortgage or assignment so
retained, with evidence of recording thereon, certified to be true and
complete by such recording office, shall satisfy a Seller's obligations in
Section 2.01. If any document submitted for recording pursuant to this
Agreement is (x) lost prior to recording or rejected by the applicable
recording office, the applicable Seller shall immediately prepare or cause to
be prepared a substitute and submit it for recording, and shall deliver copies
and originals thereof in accordance with the foregoing or (y) lost after
recording, the applicable Seller shall deliver to the Co-Trustee a copy of
such document certified by the applicable public recording office to be a true
and complete copy of the original recorded document. Each Seller shall
promptly forward or cause to be forwarded to the Co-Trustee (x) from time to
time additional original documents evidencing an assumption or modification of
a Mortgage Loan and (y) any other documents required to be delivered by the
Depositor or the Master Servicer to the Co-Trustee within the time periods
specified in this Section 2.01.

          With respect to each Mortgage Loan other than a MERS Mortgage Loan
as to which the related Mortgaged Property and Mortgage File are located in
any jurisdiction under the laws of which the recordation of the assignment
specified in clause (iii) above is not necessary to protect the Trustee's and
the Certificateholders' interest in the related Mortgage Loan, as evidenced by
an Opinion of Counsel delivered by CHL to the Trustee within 90 days of the
Closing Date (which opinion may be in the form of a "survey" opinion and is
not required to be delivered by counsel admitted to practice law in the
jurisdiction as to which such opinion applies), in lieu of recording the
assignment specified in clause (iii) above, the applicable Seller may deliver
an unrecorded assignment in blank, in form otherwise suitable for recording to
the Co-Trustee; provided that if the related Mortgage has not been returned
from the applicable


                                      61
<PAGE>


public recording office, such assignment, or any copy thereof, of the Mortgage
may exclude the information to be provided by the recording office. As to any
Mortgage Loan other than a MERS Mortgage Loan, the procedures of the preceding
sentence shall be applicable only so long as the related Mortgage File is
maintained in the possession of the Co-Trustee in the State or jurisdiction
described in such sentence. In the event that with respect to Mortgage Loans
other than MERS Mortgage Loans (I) any Seller, the Depositor, the Master
Servicer or the NIM Insurer gives written notice to the Trustee that recording
is required to protect the right, title and interest of the Trustee on behalf
of the Certificateholders in and to any Mortgage Loan, (II) a court
recharacterizes any sale of the Mortgage Loans as a financing, or (III) as a
result of any change in or amendment to the laws of the State or jurisdiction
described in the first sentence of this paragraph or any applicable political
subdivision thereof, or any change in official position regarding application
or interpretation of such laws, including a holding by a court of competent
jurisdiction, such recording is so required, the Co-Trustee shall complete the
assignment in the manner specified in clause (iii) above and CHL shall submit
or cause to be submitted for recording as specified above or, should CHL fail
to perform such obligations, the Trustee shall cause the Master Servicer, at
the Master Servicer's expense, to cause each such previously unrecorded
assignment to be submitted for recording as specified above. In the event a
Mortgage File is released to the Master Servicer as a result of the Master
Servicer's having completed a Request for Document Release, the Trustee shall
complete the assignment of the related Mortgage in the manner specified in
clause (iii) above.

          So long as the Co-Trustee or its agent maintains an office in the
State of California, the Co-Trustee or its agent shall maintain possession of
and not remove or attempt to remove from the State of California any of the
Mortgage Files as to which the related Mortgaged Property is located in such
State. In the event that a Seller fails to record an assignment of a Mortgage
Loan as herein provided within 90 days of notice of an event set forth in
clause (I), (II) or (III) of the preceding paragraph, the Master Servicer
shall prepare and, if required hereunder, file such assignments for
recordation in the appropriate real property or other records office. Each
Seller hereby appoints the Master Servicer (and any successor servicer
hereunder) as its attorney-in-fact with full power and authority acting in its
stead for the purpose of such preparation, execution and filing.

          In the case of Mortgage Loans that become the subject of a Principal
Prepayment between the Closing Date (in the case of Initial Mortgage Loans) or
related Subsequent Transfer Date (in the case of Subsequent Mortgage Loans)
and the Cut-off Date, CHL shall deposit or cause to be deposited in the
Certificate Account the amount required to be deposited therein with respect
to such payment pursuant to Section 3.05 hereof.

          Notwithstanding anything to the contrary in this Agreement, within
thirty days after the Closing Date (in the case of Initial Mortgage Loans) or
within twenty days after the related Subsequent Transfer Date (in the case of
Subsequent Mortgage Loans), CHL (on behalf of each Seller) shall either (i)
deliver to the Co-Trustee the Mortgage File as required pursuant to this
Section 2.01 for each Delay Delivery Mortgage Loan or (ii) (A) repurchase the
Delay Delivery Mortgage Loan or (B) substitute the Delay Delivery Mortgage
Loan for a Replacement Mortgage Loan, which repurchase or substitution shall
be accomplished in the manner and subject to the conditions set forth in
Section 2.03, provided that if CHL fails to deliver a Mortgage File for any
Delay Delivery Mortgage Loan within the period provided in the prior


                                      62
<PAGE>


sentence, the cure period provided for in Section 2.02 or in Section 2.03
shall not apply to the initial delivery of the Mortgage File for such Delay
Delivery Mortgage Loan, but rather CHL shall have five (5) Business Days to
cure such failure to deliver. CHL shall promptly provide each Rating Agency
with written notice of any cure, repurchase or substitution made pursuant to
the proviso of the preceding sentence. On or before the thirtieth (30th) day
(or if such thirtieth day is not a Business Day, the succeeding Business Day)
after the Closing Date (in the case of Initial Mortgage Loans) or within
twenty days after the related Subsequent Transfer Date (in the case of
Subsequent Mortgage Loans), the Trustee shall, in accordance with the
provisions of Section 2.02, send a Delay Delivery Certification substantially
in the form annexed hereto as Exhibit G-3 (with any applicable exceptions
noted thereon) for all Delay Delivery Mortgage Loans delivered within thirty
(30) days after such date. The Trustee will promptly send a copy of such Delay
Delivery Certification to each Rating Agency.

          Each Seller has entered into this Agreement in consideration for the
purchase of the Mortgage Loans sold by such Seller to the Depositor and has
agreed to take the actions specified herein. The Depositor, concurrently with
the execution and delivery of this Agreement, hereby sells, transfers, assigns
and otherwise conveys to the Trustee for the use and benefit of the
Certificateholders, without recourse, all right, title and interest in the
portion of the Trust Fund not otherwise conveyed to the Trustee pursuant to
Sections 2.01(a) or (b).

          Section 2.02 Acceptance by Trustee of the Mortgage Loans.

          (a) The Co-Trustee acknowledges receipt, subject to the limitations
contained in and any exceptions noted in the Initial Certification in the form
annexed hereto as Exhibit G-1 and in the list of exceptions attached thereto,
of the documents referred to in clauses (i) and (iii) of Section 2.01(g) above
with respect to the Initial Mortgage Loans and all other assets included in
the Trust Fund and declares that it holds and will hold such documents and the
other documents delivered to it constituting the Mortgage Files, and that it
holds or will hold such other assets included in the Trust Fund, in trust for
the exclusive use and benefit of all present and future Certificateholders.

          The Trustee agrees to execute and deliver on the Closing Date to the
Depositor, the Master Servicer and CHL (on behalf of each Seller) an Initial
Certification substantially in the form annexed hereto as Exhibit G-1 to the
effect that, as to each Initial Mortgage Loan listed in the Mortgage Loan
Schedule (other than any Initial Mortgage Loan paid in full or any Initial
Mortgage Loan specifically identified in such certification as not covered by
such certification), the documents described in Section 2.01(g)(i) and, in the
case of each Initial Mortgage Loan that is not a MERS Mortgage Loan, the
documents described in Section 2.01(g)(iii) with respect to such Initial
Mortgage Loans as are in the Co-Trustee's possession and based on its review
and examination and only as to the foregoing documents, such documents appear
regular on their face and relate to such Initial Mortgage Loan. The Trustee
agrees to execute and deliver within 30 days after the Closing Date to the
Depositor, the Master Servicer and CHL (on behalf of each Seller) an Interim
Certification substantially in the form annexed hereto as Exhibit G-2 to the
effect that, as to each Initial Mortgage Loan listed in the Mortgage Loan
Schedule (other than any Initial Mortgage Loan paid in full or any Initial
Mortgage Loan specifically identified in such certification as not covered by
such certification) all documents required to be delivered to the Co-Trustee
pursuant to the Agreement with respect to such Initial Mortgage Loans are in
its


                                      63
<PAGE>


possession (except those documents described in Section 2.01(g)(vi)) and based
on its review and examination and only as to the foregoing documents, (i) such
documents appear regular on their face and relate to such Initial Mortgage
Loan, and (ii) the information set forth in items (i), (iv), (v), (vi),
(viii), (ix) and (xv) of the definition of the "Mortgage Loan Schedule"
accurately reflects information set forth in the Mortgage File. On or before
the thirtieth (30th) day after the Closing Date (or if such thirtieth day is
not a Business Day, the succeeding Business Day), the Trustee shall deliver to
the Depositor, the Master Servicer and CHL (on behalf of each Seller) a Delay
Delivery Certification with respect to the Initial Mortgage Loans
substantially in the form annexed hereto as Exhibit G-3, with any applicable
exceptions noted thereon. The Trustee or the Co-Trustee, as applicable, shall
be under no duty or obligation to inspect, review or examine such documents,
instruments, certificates or other papers to determine that the same are
genuine, enforceable or appropriate for the represented purpose or that they
have actually been recorded in the real estate records or that they are other
than what they purport to be on their face.

          Not later than 180 days after the Closing Date, the Trustee shall
deliver to the Depositor, the Master Servicer, CHL (on behalf of each Seller)
and any Certificateholder that so requests, a Final Certification with respect
to the Initial Mortgage Loans substantially in the form annexed hereto as
Exhibit H, with any applicable exceptions noted thereon.

          In connection with the Trustee's completion and delivery of such
Final Certification, the Co-Trustee, at the direction of the Trustee, shall
review each Mortgage File with respect to the Initial Mortgage Loans to
determine that such Mortgage File contains the following documents:

               (i) the original Mortgage Note, endorsed by manual or facsimile
          signature in blank in the following form: "Pay to the order of
          ________________ without recourse", with all intervening
          endorsements that show a complete chain of endorsement from the
          originator to the Person endorsing the Mortgage Note (each such
          endorsement being sufficient to transfer all right, title and
          interest of the party so endorsing, as noteholder or assignee
          thereof, in and to that Mortgage Note), or, if the original Mortgage
          Note has been lost or destroyed and not replaced, an original lost
          note affidavit, stating that the original Mortgage Note was lost or
          destroyed, together with a copy of the related Mortgage Note and all
          such intervening endorsements;

               (ii) in the case of each Initial Mortgage Loan that is not a
          MERS Mortgage Loan, the original recorded Mortgage or a copy of such
          Mortgage, with recording information, and in the case of each
          Initial Mortgage Loan that is a MERS Mortgage Loan, the original
          Mortgage or a copy of such Mortgage, with recording information,
          noting the presence of the MIN of the Initial Mortgage Loan and
          language indicating that the Mortgage Loan is a MOM Loan if the
          Initial Mortgage Loan is a MOM Loan, with evidence of recording
          indicated thereon, or a copy of the Mortgage certified by the public
          recording office in which Mortgage has been recorded;


                                      64
<PAGE>


                (iii) in the case of each Initial Mortgage Loan that is not a
          MERS Mortgage Loan, a duly executed assignment of the Mortgage or a
          copy thereof with recording information, in either case in the form
          permitted by Section 2.01;

               (iv) the original recorded assignment or assignments of the
          Mortgage or a copy of such assignments, with recording information,
          together with all interim recorded assignments of such Mortgage or a
          copy of such assignments, with recording information (in each case
          noting the presence of a MIN in the case of each MERS Mortgage
          Loan);

               (v) the original or copies of each assumption, modification,
          written assurance or substitution agreement, if any; and

               (vi) the original or duplicate original lender's title policy
          or a copy of lender's title policy or a printout of the electronic
          equivalent and all riders thereto.

          If, in the course of such review, the Co-Trustee finds any document
or documents constituting a part of such Mortgage File that do not meet the
requirements of clauses (i)-(iv) and (vi) above, the Trustee shall include
such exceptions in such Final Certification (and the Trustee shall state in
such Final Certification whether any Mortgage File does not then include the
original or duplicate original lender's title policy or a printout of the
electronic equivalent and all riders thereto). If the public recording office
in which a Mortgage or assignment thereof is recorded retains the original of
such Mortgage or assignment, a copy of the original Mortgage or assignment so
retained, with evidence of recording thereon, certified to be true and
complete by such recording office, shall be deemed to satisfy the requirements
of clause (ii), (iii) or (iv) above, as applicable. CHL shall promptly correct
or cure such defect referred to above within 90 days from the date it was so
notified of such defect and, if CHL does not correct or cure such defect
within such period, CHL shall either (A) if the time to cure such defect
expires prior to the end of the second anniversary of the Closing Date,
substitute for the related Initial Mortgage Loan a Replacement Mortgage Loan,
which substitution shall be accomplished in the manner and subject to the
conditions set forth in Section 2.03, or (B) purchase such Initial Mortgage
Loan from the Trust Fund within 90 days from the date CHL was notified of such
defect in writing at the Purchase Price of such Initial Mortgage Loan;
provided that any such substitution pursuant to (A) above or repurchase
pursuant to (B) above shall not be effected prior to the delivery to the
Trustee of the Opinion of Counsel required by Section 2.05 hereof and any
substitution pursuant to (A) above shall not be effected prior to the
additional delivery to the Co-Trustee of a Request for File Release. No
substitution will be made in any calendar month after the Determination Date
for such month. The Purchase Price for any such Initial Mortgage Loan shall be
deposited by CHL in the Certificate Account and, upon receipt of such deposit
and Request for File Release with respect thereto, the Co-Trustee shall
release the related Mortgage File to CHL and shall execute and deliver at
CHL's request such instruments of transfer or assignment as CHL has prepared,
in each case without recourse, as shall be necessary to vest in CHL, or a
designee, the Trustee's interest in any Initial Mortgage Loan released
pursuant hereto. If pursuant to the foregoing provisions CHL repurchases an
Initial Mortgage Loan that is a MERS Mortgage Loan, the Master Servicer shall
cause MERS to execute and deliver an assignment of the Mortgage in recordable
form to transfer the Mortgage from MERS to CHL and


                                      65
<PAGE>


shall cause such Mortgage to be removed from registration on the MERS(R)
System in accordance with MERS' rules and regulations.

          The Co-Trustee shall retain possession and custody of each Mortgage
File in accordance with and subject to the terms and conditions set forth
herein. Each Seller shall promptly deliver to the Co-Trustee, upon the
execution or receipt thereof, the originals of such other documents or
instruments constituting the Mortgage File that come into the possession of
such Seller from time to time.

          It is understood and agreed that the obligation of CHL to substitute
for or to purchase any Mortgage Loan that does not meet the requirements of
Section 2.02(a) above shall constitute the sole remedy respecting such defect
available to the Trustee, the Co-Trustee, the Depositor and any
Certificateholder against any Seller.

          It is understood and agreed that the obligation of CHL to substitute
for or to purchase, pursuant to Section 2.02(a), any Initial Mortgage Loan
whose Mortgage File contains any document or documents that does not meet the
requirements of clauses (i)-(iv) and (vi) above and which defect is not
corrected or cured by CHL within 90 days from the date it was notified of such
defect, shall constitute the sole remedy respecting such defect available to
the Trustee, the Co-Trustee, the Depositor and any Certificateholder against
any Seller.

          (b) The Trustee agrees to execute and deliver on the Subsequent
Transfer Date to the Depositor, the Master Servicer and CHL (on behalf of each
Seller) an Initial Certification substantially in the form annexed hereto as
Exhibit G-4 to the effect that, as to each Subsequent Mortgage Loan listed in
the Mortgage Loan Schedule (other than any Subsequent Mortgage Loan paid in
full or any Subsequent Mortgage Loan specifically identified in such
certification as not covered by such certification), the documents described
in Section 2.01(g)(i) and, in the case of each Subsequent Mortgage Loan that
is not a MERS Mortgage Loan, the documents described in Section 2.01(g)(iii),
with respect to such Subsequent Mortgage Loan are in its possession, and based
on its review and examination and only as to the foregoing documents, such
documents appear regular on their face and relate to such Subsequent Mortgage
Loan.

          The Trustee agrees to execute and deliver within 30 days after the
Subsequent Transfer Date to the Depositor, the Master Servicer and CHL (on
behalf of each Seller) an Interim Certification substantially in the form
annexed hereto as Exhibit G-2 to the effect that, as to each Subsequent
Mortgage Loan listed in the Mortgage Loan Schedule (other than any Subsequent
Mortgage Loan paid in full or any Subsequent Mortgage Loan specifically
identified in such certification as not covered by such certification), all
documents required to be delivered to it pursuant to this Agreement with
respect to such Subsequent Mortgage Loan are in its possession (except those
described in Section 2.01(g)(vi)) and based on its review and examination and
only as to the foregoing documents, (i) such documents appear regular on their
face and relate to such Subsequent Mortgage Loan, and (ii) the information set
forth in items (i), (iv), (v), (vi), (viii), (ix) and (xv) of the definition
of the "Mortgage Loan Schedule" accurately reflects information set forth in
the Mortgage File. On or before the thirtieth (30th) day after the Subsequent
Transfer Date (or if such thirtieth day is not a Business Day, the succeeding
Business Day), the Trustee shall deliver to the Depositor, the Master Servicer
and CHL (on behalf of each


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Seller) a Delay Delivery Certification with respect to the Subsequent Mortgage
Loans substantially in the form annexed hereto as Exhibit G-3, with any
applicable exceptions noted thereon, together with a Subsequent Certification
substantially in the form annexed hereto as Exhibit G-4. The Trustee shall be
under no duty or obligation to inspect, review or examine such documents,
instruments, certificates or other papers to determine that the same are
genuine, enforceable or appropriate for the represented purpose or that they
have actually been recorded in the real estate records or that they are other
than what they purport to be on their face.

          Not later than 180 days after the Subsequent Transfer Date, the
Trustee shall deliver to the Depositor, the Master Servicer, CHL (on behalf of
each Seller) and to any Certificateholder that so requests a Final
Certification with respect to the Subsequent Mortgage Loans substantially in
the form annexed hereto as Exhibit H, with any applicable exceptions noted
thereon.

          In connection with the Trustee's completion and delivery of such
Final Certification, the Co-Trustee shall review each Mortgage File with
respect to the Subsequent Mortgage Loans to determine that such Mortgage File
contains the following documents:

               (i) the original Mortgage Note, endorsed by manual or facsimile
     signature in blank in the following form: "Pay to the order of
     ________________ without recourse", with all intervening endorsements
     that show a complete chain of endorsement from the originator to the
     Person endorsing the Mortgage Note (each such endorsement being
     sufficient to transfer all right, title and interest of the party so
     endorsing, as noteholder or assignee thereof, in and to that Mortgage
     Note), or, if the original Mortgage Note has been lost or destroyed and
     not replaced, an original lost note affidavit, stating that the original
     Mortgage Note was lost or destroyed, together with a copy of the related
     Mortgage Note and all such intervening endorsements;

                (ii) in the case of each Subsequent Mortgage Loan that is not a
     MERS Mortgage Loan, the original recorded Mortgage or a copy of such
     Mortgage, with recording information, and in the case of each Subsequent
     Mortgage Loan that is a MERS Mortgage Loan, the original Mortgage or a
     copy of such Mortgage, with recording information, noting the presence of
     the MIN of the Subsequent Mortgage Loan and language indicating that the
     Subsequent Mortgage Loan is a MOM Loan if the Subsequent Mortgage Loan is
     a MOM Loan, with evidence of recording indicated thereon, or a copy of
     the Mortgage certified by the public recording office in which Mortgage
     has been recorded;

               (iii) in the case of each Subsequent Mortgage Loan that is not
     a MERS Mortgage Loan, a duly executed assignment of the Mortgage or a
     copy thereof with recording information, in either case in the form
     permitted by Section 2.01;

               (iv) the original recorded assignment or assignments of the
     Mortgage or a copy of such assignments, with recording information,
     together with all interim recorded assignments of such Mortgage or a copy
     of such assignments, with recording information (in each case noting the
     presence of a MIN in the case of each MERS Mortgage Loan);


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               (v) the original or copies of each assumption, modification,
     written assurance or substitution agreement, if any; and

               (vi) the original or duplicate original lender's title policy
     or a copy of lender's title policy or a printout of the electronic
     equivalent and all riders thereto.

          If, in the course of such review, the Trustee finds any document or
documents constituting a part of such Mortgage File that do not meet the
requirements of clauses (i)-(iv) and (vi) above, the Trustee shall include
such exceptions in such Final Certification (and the Trustee shall state in
such Final Certification whether any Mortgage File does not then include the
original or duplicate original lender's title policy or a printout of the
electronic equivalent and all riders thereto). If the public recording office
in which a Mortgage or assignment thereof is recorded retains the original of
such Mortgage or assignment, a copy of the original Mortgage or assignment so
retained, with evidence of recording thereon, certified to be true and
complete by such recording office, shall be deemed to satisfy the requirements
of clause (ii), (iii) or (iv) above, as applicable. CHL shall promptly correct
or cure such defect referred to above within 90 days from the date it was so
notified of such defect and, if CHL does not correct or cure such defect
within such period, CHL shall either (A) if the time to cure such defect
expires prior to the end of the second anniversary of the Closing Date,
substitute for the related Subsequent Mortgage Loan a Replacement Mortgage
Loan, which substitution shall be accomplished in the manner and subject to
the conditions set forth in Section 2.03, or (B) purchase such Subsequent
Mortgage Loan from the Trust Fund within 90 days from the date CHL was
notified of such defect in writing at the Purchase Price of such Subsequent
Mortgage Loan; provided that any such substitution pursuant to (A) above or
repurchase pursuant to (B) above shall not be effected prior to the delivery
to the Trustee of the Opinion of Counsel required by Section 2.05 hereof and
any substitution pursuant to (A) above shall not be effected prior to the
additional delivery to the Trustee of a Request for File Release. No
substitution will be made in any calendar month after the Determination Date
for such month. The Purchase Price for any such Subsequent Mortgage Loan shall
be deposited by CHL in the Certificate Account and, upon receipt of such
deposit and Request for File Release with respect thereto, the Trustee shall
release the related Mortgage File to CHL and shall execute and deliver at
CHL's request such instruments of transfer or assignment as CHL has prepared,
in each case without recourse, as shall be necessary to vest in CHL, or a
designee, the Trustee's interest in any Subsequent Mortgage Loan released
pursuant hereto. If pursuant to the foregoing provisions CHL repurchases a
Subsequent Mortgage Loan that is a MERS Mortgage Loan, the Master Servicer
shall cause MERS to execute and deliver an assignment of the Mortgage in
recordable form to transfer the Mortgage from MERS to CHL and shall cause such
Mortgage to be removed from registration on the MERS(R) System in accordance
with MERS' rules and regulations.

          The Co-Trustee shall retain possession and custody of each Mortgage
File in accordance with and subject to the terms and conditions set forth
herein. Each Seller shall promptly deliver to the Co-Trustee, upon the
execution or receipt thereof, the originals of such other documents or
instruments constituting the Mortgage File that come into the possession of
such Seller from time to time.

          It is understood and agreed that the obligation of the Sellers to
substitute for or to purchase, pursuant to Section 2.02(b), any Subsequent
Mortgage Loan whose Mortgage File


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contains any document or documents that does not meet the requirements of
clauses (i)-(iv) and (vi) above and which defect is not corrected or cured by
such Seller within 90 days from the date it was notified of such defect, shall
constitute the sole remedy respecting such defect available to the Trustee,
the Co-Trustee, the Depositor and any Certificateholder against the Sellers.

          Section 2.03 Representations, Warranties and Covenants of the Master
                       Servicer and the Sellers.

          (a) The Master Servicer hereby represents and warrants to the
Depositor and the Trustee as follows, as of the date hereof with respect to
the Initial Mortgage Loans, and the related Subsequent Transfer Date with
respect to the Subsequent Mortgage Loans:

               (1) The Master Servicer is duly organized as a Texas limited
     partnership and is validly existing and in good standing under the laws
     of the State of Texas and is duly authorized and qualified to transact
     any and all business contemplated by this Agreement to be conducted by
     the Master Servicer in any state in which a Mortgaged Property is located
     or is otherwise not required under applicable law to effect such
     qualification and, in any event, is in compliance with the doing business
     laws of any such state, to the extent necessary to ensure its ability to
     enforce each Mortgage Loan, to service the Mortgage Loans in accordance
     with the terms of this Agreement and to perform any of its other
     obligations under this Agreement in accordance with the terms hereof.

               (2) The Master Servicer has the full partnership power and
     authority to sell and service each Mortgage Loan, and to execute, deliver
     and perform, and to enter into and consummate the transactions
     contemplated by this Agreement and has duly authorized by all necessary
     partnership action on the part of the Master Servicer the execution,
     delivery and performance of this Agreement; and this Agreement, assuming
     the due authorization, execution and delivery hereof by the other parties
     hereto, constitutes a legal, valid and binding obligation of the Master
     Servicer, enforceable against the Master Servicer in accordance with its
     terms, except that (a) the enforceability hereof may be limited by
     bankruptcy, insolvency, moratorium, receivership and other similar laws
     relating to creditors' rights generally and (b) the remedy of specific
     performance and injunctive and other forms of equitable relief may be
     subject to equitable defenses and to the discretion of the court before
     which any proceeding therefor may be brought.

               (3) The execution and delivery of this Agreement by the Master
     Servicer, the servicing of the Mortgage Loans by the Master Servicer
     under this Agreement, the consummation of any other of the transactions
     contemplated by this Agreement, and the fulfillment of or compliance with
     the terms hereof are in the ordinary course of business of the Master
     Servicer and will not (A) result in a material breach of any term or
     provision of the certificate of limited partnership, partnership
     agreement or other organizational document of the Master Servicer or (B)
     materially conflict with, result in a material breach, violation or
     acceleration of, or result in a material default under, the terms of any
     other material agreement or instrument to which the Master Servicer is a
     party or by which it may be bound, or (C) constitute a material violation
     of


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     any statute, order or regulation applicable to the Master Servicer of any
     court, regulatory body, administrative agency or governmental body having
     jurisdiction over the Master Servicer; and the Master Servicer is not in
     breach or violation of any material indenture or other material agreement
     or instrument, or in violation of any statute, order or regulation of any
     court, regulatory body, administrative agency or governmental body having
     jurisdiction over it which breach or violation may materially impair the
     Master Servicer's ability to perform or meet any of its obligations under
     this Agreement.

               (4) The Master Servicer is an approved servicer of conventional
     mortgage loans for Fannie Mae and Freddie Mac and is a mortgagee approved
     by the Secretary of Housing and Urban Development pursuant to sections
     203 and 211 of the National Housing Act.

                (5) No litigation is pending or, to the best of the Master
     Servicer's knowledge, threatened, against the Master Servicer that would
     materially and adversely affect the execution, delivery or enforceability
     of this Agreement or the ability of the Master Servicer to service the
     Mortgage Loans or to perform any of its other obligations under this
     Agreement or any Subsequent Transfer Agreement in accordance with the
     terms hereof or thereof.

               (6) No consent, approval, authorization or order of any court
     or governmental agency or body is required for the execution, delivery
   &n