INDENTURE

Exhibit 4.5

AIRTRAN HOLDINGS, INC.

TO

AS TRUSTEE

INDENTURE

DATED AS OF [ · ] 200 [ · ]

PROVIDING FOR ISSUANCE OF

DEBT SECURITIES IN SERIES

AIRTRAN HOLDINGS, INC.

Certain Sections of this Indenture relating to Sections 3.10 through 3.18, inclusive, of the Trust Indenture Act of 1939:

NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a part of the Indenture.

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TABLE OF CONTENTS

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NOTE: This table of contents shall not, for any purpose, be deemed to be a part of the Indenture.

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INDENTURE, dated as of [ · ][ · ] , 200 [ · ] , between AirTran Holdings, Inc., a corporation duly organized and existing under the laws of the State of Nevada (herein called the “ Company ”), having its principal office at 9955 AirTran Boulevard, Orlando, Florida 32827, and                                  , a              banking corporation, as Trustee (herein called the (“ Trustee ”).

RECITALS OF THE COMPANY

The Company has duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of its debentures, notes or other evidences of indebtedness (herein called the “ Securities ”), to be issued in one or more series as provided in this Indenture.

All things necessary to make this Indenture a valid agreement of the Company, in accordance with its terms, have been done.

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

For and in consideration of the premises and the purchase of the Securities by the Holders thereof, it is mutually agreed, for the equal and proportionate benefit of all Holders of the Securities or of series thereof, as follows:

ARTICLE 1

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

Section 1.1     Definitions.

“ Act ”, when used with respect to any Holder, has the meaning specified in Section 1.6 .

“Acquired Indebtedness” means Indebtedness of a Person (1) assumed in connection with an Asset Acquisition from such Person; (2) existing at the time such Person becomes a Subsidiary of any other Person; or (3) secured by a Lien encumbering any asset acquired by the Company or any of its Subsidiaries.

“ Affiliate ” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control” (including, with correlative meanings, the terms “controlling,” “controlled by” and “under common control with”) when used with respect to any specified Person means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise. The Trustee may request and conclusively rely on an Officers’ Certificate to determine whether any Person is an Affiliate of the Company or any Guarantor.

“Agent” means any Registrar, Paying Agent or co-registrar.

“ Agent Members ” has the meaning set forth in Section 2.4 of this Indenture.

“ Airways ” means AirTran Airways, Inc.

“ Applicable Procedures ” means, with respect to any transfer or exchange of or for beneficial interests in any Global Securities, the rules and procedures of the Depositary, Euroclear and Clearstream that apply to such transfer or exchange.

“ Attributable Debt ” means , in connection with a sale and leaseback transaction involving a lease with an original term of more than twelve (12) months, (1) the present value of the total net amount of rent required to be paid under such lease during the remaining term of the lease (including any renewal term or period for which such lease has been extended), discounted at the rate of interest set forth or implicit in the terms of such lease or, if not practicable to determine such a rate, the weighted average interest rate per year borne by the debt securities of each series outstanding under this Indenture compounded semi-annually, or (2) if the obligation with respect to such sale and leaseback transaction is required to be classified and accounted for as a capitalized lease for financial reporting purposes in accordance with generally accepted accounting principles, the amount equal to the capitalized amount of such obligation determined in accordance with generally accepted accounting principles and included in the financial statements of the lessee.

“Assets ” of any Person means all types of real, personal, tangible, intangible or mixed property or assets owned by such Person whether or not included in the most recent consolidated financial statements of the Company and its Subsidiaries under GAAP.

“ Attributable Liens ” means, in connection with a Sale and Leaseback Transaction, the lesser of (1) the fair market value of the assets subject to such transaction; and (2) the present value (discounted at a rate per annum equal to the average interest borne by all outstanding Securities issued under the Indenture determined on a weighted average basis and compounded semiannually) of the obligations of the lessee for rental payments during the term of the related lease.

“ Authenticating Agent ” means any Person authorized by the Trustee pursuant to Section 6.15 to act on behalf of the Trustee to authenticate Securities of one or more series.

“Authentication Order ” has the meaning set forth in Section 3.3 .

“Average Life to Stated Maturity” means, with respect to any Indebtedness, as at any date of determination, the quotient obtained by dividing (1) the sum of the products of (A) the number of years (or any fraction thereof) from such date to the date or dates of each successive scheduled principal payment (including, without limitation, any sinking fund requirements) of such Indebtedness multiplied by (B) the amount of each such principal payment by (2) the sum of all such principal payments.

“Bankruptcy Law” means Title 11 United States Code or any similar law for the relief of debtors.

“ Board of Directors ” means either the board of directors of the Company or of a Guarantor, as applicable, or any duly authorized committee of that board.

“ Board Resolution ” means a copy of a resolution certified by the Secretary or an Assistant Secretary of the Company or any Guarantor, as applicable, to have been duly adopted

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by the Board of Directors and to be in full force and effect on the date of such certification, and delivered to the Trustee.

“ Book Entry Securities ” means securities in book entry form, whether or not also evidenced by Global Securities.

“ Business Day ”, when used with respect to any Place of Payment, means each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which banking institutions in that Place of Payment are authorized or obligated by law or executive order to close.

“Capital Stock” means, with respect to any Person, any and all shares, interests, participations, rights in or other equivalents (however designated) of such Person’s capital stock, and any rights (other than debt securities convertible into capital stock), warrants or options exchangeable for or convertible into such capital stock.

“Capitalized Lease Obligation” means any obligation under a lease of (or other agreement conveying the right to use) any property (whether real, personal or mixed) that is required to be classified and accounted for as a capital lease obligation under GAAP, and the amount of any such obligation at any date shall be the capitalized amount thereof at such date, determined in accordance with GAAP.

“Cash Equivalents” means, at any time:

(1) any evidence of Indebtedness with a maturity of one hundred eighty (180) days or less issued or directly and fully guaranteed or insured by the United States of America or any agency or instrumentality thereof (provided that the full faith and credit of the United States of America is pledged in support thereof);

(2) certificates of deposit or acceptances with a maturity of one hundred eighty (180) days or less of any financial institution that is a member of the Federal Reserve System having combined capital and surplus and undivided profits of not less than $500,000,000;

(3) certificates of deposit with a maturity of one hundred eighty (180) days or less of any financial institution that is not organized under the laws of the United States, any state thereof or the District of Columbia that are rated at least A-1 by S&P or at least P-1 by Moody’s or at least an equivalent rating category of another nationally recognized securities rating agency;

(4) repurchase agreements and reverse repurchase agreements relating to marketable direct obligations issued or unconditionally guaranteed by the United States of America or issued by any agency thereof and backed by the full faith and credit of the United States of America, in each case maturing within one hundred eighty (180) days from the date of acquisition; provided that the terms of such agreements comply with the guidelines set forth in the Federal Financial Agreements of Depository Institutions With Securities Dealers and Others, as adopted by the Comptroller of the Currency on October 31, 1985.

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“Common Stock” means, with respect to any Person, any and all shares, interests or other participations in, and other equivalents (however designated and whether voting or nonvoting) of, such Person’s common stock, whether outstanding at the Issue Date or issued after the Issue Date, and includes, without limitation, all series and classes of such common stock.

“ Company ” means the Person named as the “Company” in the first paragraph of this instrument until a successor Person shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Company” shall mean such successor Person.

“Consolidated Net Assets ” means, as of any particular time, the aggregate amount of assets after deducting therefrom all current liabilities except for (1) notes and loans payable; (2) current maturities of long-term debt; and (3) current maturities of obligations under capital leases, all as set forth on the most recent consolidated balance sheet of the Company and its consolidated Subsidiaries and computed in accordance with GAAP.

“ Corporate Trust Office ” means the principal office of the Trustee at which at any particular time its corporate trust business shall be principally administered, which office at the date of original execution of this Indenture is located at [• ] , except that, with respect to presentation of the Securities for payment or registration of transfers or exchanges and the location of the register, such term means the office or agency of the Trustee at which at any particular time its corporate agency business shall be conducted.

“Credit Facilities ” means, one or more debt facilities (including without limitation, any Credit Agreement specified in any supplemental indenture) or commercial paper facilities, in each case with banks or other institutional lenders providing for revolving credit loans, term loans, receivables financing (including through the sale of receivables to such lenders or to special purpose entities formed to borrow from such lenders against such receivables) or letters of credit, in each case, as amended, restated, modified, renewed, refunded, replaced or refinanced in whole or in part from time to time.

“Credit Facility Agent” means any agent appointed on behalf of the lenders under an applicable Credit Facility or, if there is no such agent, the lender under such agreement.

“Currency Agreement” means, with respect to any Person, any spot or foreign exchange contract, currency swap agreement or other similar agreement or arrangement designed to protect such Person or any of its Subsidiaries against, or to manage exposure to, fluctuations in currency values.

“Custodian” means any receiver, trustee, assignee, liquidator, sequestrator or similar official under any Bankruptcy Law.

“ Defaulted Interest ” has the meaning specified in Section 3.7 .

“ Depositary ” means, with respect to the Securities of any series issuable or issued in whole or in part in the form of one or more Book-Entry Securities or Global Securities, the Person designated as Depositary for such series by the Company pursuant to Section 3.1 , which Person shall be a clearing agency registered under the Securities Exchange Act of 1934, its nominees, and their respective successors; and if at any time there is more than one such Person,

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“Depositary” as used with respect to the Securities of any series shall mean the Depositary with respect to the Securities of such series.

“ Domestic Subsidiary ” means a subsidiary of the Company which transacts substantially all of its business or maintains substantially all of its property within the United States, excluding its territories, possessions and Puerto Rico. The term does not include any subsidiary which is engaged primarily in financing operations outside of the United States or in leasing personal property or financing inventory, receivables or other property.

“ Event of Default ” has the meaning specified in Section 5.1(a) .

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended.

“GAAP” means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as may be approved by a significant segment of the accounting profession of the United States of America, which are applicable from time to time and are consistently applied.

“ Global Securities ” means, individually and collectively, Global Securities issued in accordance with certain sections of this Indenture.

“ Global Securities Legend ” means the legend set forth in Section 2.2 , which is required to be placed on all Global Securities issued under this Indenture.

“ Guarantee ” shall mean each guarantee of the Securities by any Guarantor created pursuant to the terms of a supplemental indenture.

“guarantee” means, as applied to any obligation, (1) a guarantee (other than by endorsement of negotiable instruments for collection in the ordinary course of business), direct or indirect, in any manner, of any part or all of such obligation; and (2) an agreement, direct or indirect, contingent or otherwise, the practical effect of which is to assure in any way the payment or performance (or payment of damages in the event of non-performance) of all or any part of such obligation, including, without limiting the foregoing, the payment of amounts drawn down by letters of credit.

“ Guarantor ” means (1) each person who delivers a Guarantee pursuant to pursuant to the terms of a supplemental indenture, and (2) shall include any successor replacing a Guarantor pursuant to this Indenture, and thereafter means such successor.

“ Holder ” or “ Securityholder ” means a Person in whose name a Security is registered in the Security Register.

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“Indebtedness” means, with respect to any Person, without duplication:

(1) all liabilities of such Person for borrowed money or for the deferred purchase price of property or services, excluding any trade payables and other accrued current liabilities incurred in the ordinary course of business and which are not overdue by more than ninety (90) days, but including, without limitation, all obligations, contingent or otherwise, of such Person in connection with any letters of credit, banker’s acceptance or other similar credit transaction;

(2) all obligations of such Person evidenced by bonds, notes, debentures or other similar instruments;

(3) all indebtedness created or arising under any conditional sale or other title retention agreement with respect to property acquired by such Person (even if the rights and remedies of the seller or lender under such agreement in the event of default are limited to repossession or sale of such property), but excluding trade accounts payable arising in the ordinary course of business;

(4) all obligations of such Person arising under Capitalized Lease Obligations;

(5) all Indebtedness referred to in the preceding clauses of other Persons and all dividends of other Persons, the payment of which is secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien upon property (including, without limitation, accounts and contract rights) owned by such Person, even though such Person has not assumed or become liable for the payment of such Indebtedness (the amount of such obligation being deemed to be the lesser of the value of such property or asset or the amount of the obligation so secured);

(6) all guarantees of Indebtedness referred to in this definition by such Person;

(7) all Redeemable Capital Stock of such Person valued at the greater of its voluntary or involuntary maximum fixed repurchase price plus accrued dividends;

(8) all obligations under or in respect of Currency Agreements and Interest Rate Protection Obligations of such Person; and

(9) any amendment, supplement, modification, deferral, renewal, extension or refunding of any liability of the types referred to in clauses (1) through (8) of this definition.

For purposes hereof, the “ maximum fixed repurchase price ” of any Redeemable Capital Stock which does not have a fixed repurchase price shall be calculated in accordance with the terms of such Redeemable Capital Stock as if such Redeemable Capital Stock were purchased on any date on which Indebtedness shall be required to be determined pursuant to this Indenture, and if such price is based upon, or measured by, the fair market value of such Redeemable Capital Stock, such fair market value shall be determined in good faith by the board of directors of the issuer of such Redeemable Capital Stock.

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“ Indenture ” means this instrument as originally executed or as it may from time to time be supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof, including, for all purposes of this instrument, and any such supplemental indenture, the provisions of the TIA that are deemed to be a part of and govern this instrument and any such supplemental indenture, respectively. The term “Indenture” shall also include the forms and terms of particular series of Securities established as contemplated by Section 3.1 .

“ Interest ”, when used with respect to an Original Issue Discount Security which by its terms bears interest only after Maturity, means interest payable after Maturity.

“ Interest Payment Date ”, when used with respect to any Security, means the Stated Maturity of an installment of interest on such Security.

“Lien” means any mortgage, charge, pledge, lien (statutory or other), security interest, hypothecation, assignment for security, claim, or preference or priority or other encumbrance upon or with respect to any property of any kind. A Person shall be deemed to own subject to a Lien any property which such Person has acquired or holds subject to the interest of a vendor or lessor under any conditional sale agreement, capital lease or other title retention agreement.

“ Maturity ” when used with respect to any Security, means the date on which the principal of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, call for redemption, required repurchase, or otherwise.

“Obligations” means any principal, interest, penalties, fees, indemnifications, reimbursements, damages and other liabilities payable under the documentation governing any Indebtedness.

“Officer” means the Chairman of the Board, the President, the Chief Executive Officer, any Executive Vice President, any Senior Vice President, any Vice President, the Chief Financial Officer, the Treasurer, the Secretary or the Controller of the Company or a Guarantor, as the case may be.

“Officers’ Certificate” means a certificate signed by two Officers or by an Officer and an Assistant Treasurer or Assistant Secretary of the Company or a Guarantor, as the case may be (in each case, who has been duly elected and is so serving), and delivered to the Trustee.

“Opinion of Counsel” means a written opinion from legal counsel who is reasonably acceptable to the Trustee. The counsel may be an employee of or counsel to the Company.

“ Original Issue Discount Security ” means any Security which provides for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 5.2 .

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“ Outstanding ”, when used with respect to Securities, means, as of the date of determination, all Securities theretofore authenticated and delivered under this Indenture, except:

(1) Securities theretofore canceled by the Trustee or delivered to the Trustee for cancellation;

(2) Securities for whose payment or redemption money in the necessary amount has been theretofore deposited with the Trustee or any Paying Agent (other than the Company or any of its Affiliates) in trust for the Holders of such Securities; provided , that if such Securities are to be redeemed, notice of such redemption has been duly given pursuant to Section 11.4 of this Indenture or provision therefor satisfactory to the Trustee has been made;

(3) Securities, except to the extent provided in Section 13.2 and Section 13.3 , with respect to which the Company has effected defeasance or covenant defeasance as provided in Article 13 ; and

(4) Securities which have been paid pursuant to Section 3.6 or in exchange for, or in lieu of which, other Securities have been authenticated and delivered pursuant to this Indenture, other than any such Securities in respect of which there shall have been presented to the Trustee proof satisfactory to it that such Securities are held by a bona fide purchaser in whose hands such Securities are valid obligations of the Company;

provided , however , that in determining whether the Holders of the requisite principal amount of the Outstanding Securities have given, made or taken any request, demand, authorization, direction, notice, consent, waiver or other action hereunder, or whether sufficient funds are available for redemption or for any other purpose, and for the purpose of making the calculations required by Section 313 of the TIA, (A) the principal amount of an Original Issue Discount Security that shall be deemed to be Outstanding shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon acceleration of the Maturity thereof pursuant to Section 5.2 , (B) the principal amount of a Security denominated in one or more foreign currencies or currency units shall be the U.S. dollar equivalent, determined in the manner provided as contemplated by Section 3.1 on the date of original issuance of such Security, of the principal amount (or, in the case of an Original Issue Discount Security, the U.S. dollar equivalent on the date of original issuance of such Security of the amount determined as provided in (i) above) of such Security, (C) the principal amount of any indexed security that may be counted in making such determination or calculation and that shall be deemed to be Outstanding for such purpose shall be equal to the principal face amount of such indexed security at original issuance, unless otherwise provided with respect to such Security pursuant to Section 3.1 , and (D) except for the purpose of making the calculations required by Section 313 of the TIA, Securities owned by the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining whether the Trustee shall be protected in relying upon any such request, demand, authorization, direction, notice, consent, waiver or other action, only Securities which a Responsible Officer of the Trustee actually knows to be so owned shall be so disregarded. Securities so owned which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities and that the pledgee is not the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor.

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“ Participant ” means, with respect to the Depositary, a Person who has an account with the Depositary (and if the Depositary is The Depository Trust Company, shall include Euroclear and Clearstream International, S.A., respectively).

“ Paying Agent ” means any Person authorized by the Company to pay the principal of or any premium or interest on any Securities on behalf of the Company.

“ Person ” means any individual, corporation, partnership, joint venture association, joint-stock company, trust, charitable foundation, unincorporated organization, government or any agency or political subdivision thereof or any other entity.

“Physical Security ” means a certificated Security registered in the name of the Holder thereof and issued in accordance with Section 2.4 hereof, in the form of Exhibit A hereto, except that such Security shall not bear the Global Securities Legend or other Global Securities notations.

“ Place of Payment ”, when used with respect to the Securities of any series, means the place or places where the principal of and any premium and interest on the Securities of that series are payable as specified as contemplated by Section 3.1 and Section 10.2 .

“Predecessor Security” means, with respect to any particular Security, every previous Security evidencing all or a portion of the same debt as that evidenced by such particular Security; and, for the purposes of this definition, any Security authenticated and delivered under Section 3.3 hereof in exchange for a mutilated Security or in lieu of a lost, destroyed or stolen Security shall be deemed to evidence the same debt as the mutilated, lost, destroyed or stolen Security.

“Qualified Securitization Transaction” means any transaction or series of transactions, and related Receivables Securitization Agreements, that may be entered into by the Company or any Securitization Entity, pursuant to which (1) the Company or any Subsidiary may sell, convey or otherwise transfer to a Securitization Entity its interests in Receivables and Related Assets, and (2) such Securitization Entity transfers to any other Person interests in, or grants a security interest in, such Receivables and Related Assets, pursuant to a transaction customary in the industry.

“ Receivables and Related Assets ” means all indebtedness owed to the Company or any Subsidiary constituting an account, chattel paper, instrument or general intangible, arising in connection with the sale of goods or the rendering of services by the Company or such Subsidiary, as the case may be, and further includes , without limitation, the obligation to pay any finance charges with respect thereto. Indebtedness arising from any one transaction, including, without limitation, indebtedness represented by an individual invoice, shall constitute a Receivable and Related Asset separate from a Receivable and Related Asset consisting of the indebtedness arising from any other transaction; provided , further , that any indebtedness referred to in the immediately preceding sentence shall be a Receivable and Related Asset regardless of whether the account debtor or the Company (or its Subsidiary, as the case may be) treats such indebtedness as a separate payment obligation.

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“Receivables Securitization Agreements” means a series of interrelated agreements (including a receivables purchase agreement, a receivables sale agreement, a receivables transfer agreement, and other usual and customary agreements and instruments) entered into by the Company, its Subsidiaries or any Securitization Entity, the purpose of which are to govern the terms of a Qualified Securitization Transaction , in each case as such agreement or agreements may from time to time be amended, renewed, extended, substituted, refinanced, restructured, replaced, supplemented or otherwise modified (including, without limitation, any successive renewals, extensions, substitutions, refinancings, restructurings, replacements, supplements or other modifications of the foregoing), and whether with the initial parties thereto or other parties and administrative agents.

“Redeemable Capital Stock ” means any shares of any class or series of Capital Stock that, either by the terms thereof, by the terms of any security into which it is convertible or exchangeable or by contract or otherwise, is or upon the happening of an event or passage of time would be, required to be redeemed prior to the Stated Maturity with respect to the principal of any Security or is redeemable at the option of the holder thereof at any time prior to any such Stated Maturity, or is convertible into or exchangeable for debt securities at any time prior to any such Stated Maturity.

“ Redemption Date ,” when used with respect to any Security to be redeemed, means the date fixed for such redemption by or pursuant to this Indenture.

“ Redemption Price ”, when used with respect to any Security to be redeemed, means the price at which it is to be redeemed pursuant to this Indenture.

“ Regular Record Date ” for the interest payable on any Interest Payment Date on the Securities of any series means the date specified for that purpose as contemplated by Section 3.1 .

“ Request ” or “ Order ” means, as to the Company, a written request or order signed in the name of the Company by its Chairman of the Board, its Chief Executive Officer, its President, its Chief Financial Officer, a Vice President, and by any one of its Treasurer, an Assistant Treasurer, its Controller, an Assistant Controller, its Secretary or an Assistant Secretary, and delivered to the Trustee and as to any other obligor on the Securities means corresponding officers of such obligor.

“ Responsible Officer ”, when used with respect to the Trustee, means any officer assigned by the Trustee to administer corporate trust matters and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of his or her knowledge of and familiarity with the particular subject.

“Sale and Leaseback Transaction” means any transaction by the Company or any of its Subsidiaries whereby such Person sells or transfers any Assets, whether now owned or hereinafter acquired, and thereafter rents and leases such Assets or other Assets which the Company or any of its Subsidiaries intends to use for the same purpose or purposes as the Assets being sold or transferred.

“ SEC ” means the Securities and Exchange Commission, as from time to time constituted, created under the Securities Exchange Act of 1934, or, if at any time after the execution of this

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instrument such Commission is not existing and performing the duties now assigned to it under the TIA, then the body performing such duties at such time.

“ Securities ” has the meaning stated in the first recital of this Indenture and more particularly means any Securities authenticated and delivered under this Indenture.

“ Securities Act ” means the Securities Act of 1933, as amended from time to time.

“ Security Register ” and “ Security Registrar ” have the respective meanings specified in Section 3.5 . Each of the Securities shall be dated the date of its authentication.

“Significant Subsidiary” shall have the same meaning as in Rule 1.02(w) of Regulation S-X under the Securities Act.

“ Special Record Date ” for the payment of any Defaulted Interest means a date fixed by the Trustee pursuant to Section 3.7 .

“ Stated Maturity ”, when used with respect to any Security or any installment of principal thereof or interest thereon, means the date specified in such Security as the fixed date on which the principal of such Security or such installment of principal or interest is due and payable and, when used with respect to any other Indebtedness, means the date specified in the instrument governing such Indebtedness as the fixed date on which the principal of such Indebtedness, or any installment of interest thereon, is due and payable.

“Subordinated Indebtedness” means, as to the Company, any Indebtedness of the Company that, pursuant to the instrument evidencing or governing such Indebtedness, is subordinated in right of payment to the Securities and, as to any Guarantor, means Indebtedness of the Guarantor which is subordinated in right of payment to the Guarantees.

“Subsidiary” means, with respect to any Person, (1) a corporation a majority of whose Voting Stock is at the time, directly or indirectly, owned by such Person, by one or more Subsidiaries of such Person or by such Person and one or more Subsidiaries thereof, and (2) any other Person (other than a corporation), including, without limitation, a joint venture, in which such Person, one or more Subsidiaries thereof or such Person and one or more Subsidiaries thereof, directly or indirectly, at the date of determination thereof, has at least majority ownership interest entitled to vote in the election of directors, managers or trustees thereof (or other Person performing similar functions). For purposes of this definition, any directors’ qualifying shares or investments by foreign nationals mandated by applicable law shall be disregarded in determining the ownership of a Subsidiary.

“ TIA ” means the Trust Indenture Act of 1939 as in force at the date as of which this instrument was executed; provided , however , that in the event the Trust Indenture Act of 1939 is amended after such date, TIA means, to the extent required by any such amendment, the Trust Indenture Act of 1939 as so amended.

“ Trustee ” means the Person named as the “Trustee” in the first paragraph of this instrument until a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each Person who is

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then a Trustee hereunder, and if at any time there is more than one such Person, “Trustee” as used with respect to the Securities of any series shall mean the Trustee with respect to Securities of that series.

“Trust Officer” means any officer in the Corporate Trust Department of the Trustee or any other officer of the Trustee customarily performing functions similar to those performed by any of the above-designated officers and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of his knowledge of and familiarity with the particular subject.

“U.S. Government Obligations ” has the meaning specified in Section 13.4 .

“ Vice President ”, when used with respect to the Company or the Trustee, means any vice president, whether or not designated by a number or a word or words added before or after the title “vice president”.

“Voting Stock” means any class or classes of Capital Stock pursuant to which the holders thereof have the general voting power under ordinary circumstances to elect the board of directors, managers or trustees of any Person (irrespective of whether or not, at the time, Capital Stock of any other class or classes shall have, or might have, voting power by reason of the happening of any contingency).

“Wholly Owned Subsidiary” means any Subsidiary of the Company of which 100% of the outstanding Capital Stock is owned by the Company or by one or more Wholly Owned Subsidiaries of the Company or by the Company and one or more Wholly Owned Subsidiaries of the Company. For purposes of this definition, any directors’ qualifying shares or investments by foreign nationals mandated by applicable law shall be disregarded in determining the ownership of a Subsidiary.

Section 1.2     Incorporation by Reference of Trust Indenture Act.

Upon the issuance of the Securities, if any, or the effectiveness of the Shelf Registration Statement (as defined herein), this Indenture will be subject to, and shall be governed by, the provisions of the TIA that are required or deemed to be part of and to govern indentures qualified under the TIA. Whenever this Indenture refers to a provision of the TIA, the provision is incorporated by reference in and made a part of this Indenture. The following TIA terms used in this Indenture have the following meanings:

“ Commission ” means the SEC;

“ indenture securities ” means the Securities and any Guarantees;

“ indenture security holder ” means a Securityholder or Holder;

“ indenture to be qualified ” means this Indenture;

“ indenture trustee ” or “ institutional trustee ” means the Trustee; and

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“ obligor ” on the indenture securities means the Company, any Guarantor or any other obligor on the Securities or the Guarantees.

All other TIA terms used in this Indenture that are defined by the TIA, defined by TIA reference to another statute or defined by SEC rule and not otherwise defined herein have the meanings assigned to them therein.

Section 1.3    Rules of Construction.

For all purposes of this Indenture, except as otherwise expressly provided or unless the context otherwise requires:

(1) a term has the meaning assigned to it;

(2) words in the singular include the plural, and words in the plural include the singular;

(3) “ or ” is not exclusive;

(4) “ including ” means “including, without limitation,”

(5) provisions apply to successive events and transactions;

(6) all accounting terms not otherwise defined herein have the meanings assigned to them in accordance with GAAP;

(7) the words “ herein ”, “ hereof ” and “ hereunder ” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision; and

(8) all references to $ or dollars shall refer to the lawful currency of the United States of America.

Section 1.4     Compliance Certificates and Opinions.

Upon any application or request by the Company to the Trustee to take any action under any provision of this Indenture, the Company shall furnish to the Trustee such certificates and opinions as may be required under the TIA. Each such certificate or opinion shall be given in the form of an Officers’ Certificate, if to be given by an officer of the Company, or an Opinion of Counsel, if to be given by counsel, and shall comply with the requirements of the TIA and any other requirements set forth in this Indenture.

Every certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture shall include:

(1) a statement that each individual signing such certificate or opinion has read such covenant or condition and the definitions herein relating thereto;

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(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of each such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and

(4) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with.

Section 1.5     Form of Documents Delivered to Trustee.

In any case where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or covered by only one document, but one such Person may certify or give an opinion with respect to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several documents.

Any certificate or opinion of an officer of the Company may be based, insofar as it relates to legal matters, upon a certificate or representations by counsel or an opinion of counsel, unless such officer knows, or in the exercise of reasonable care should know, that the certificate, representations or opinion with respect to the matters upon which such officer’s certificate or opinion is based are erroneous. Any such certificate or representations of counsel or opinion of counsel may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of the Company stating that the information with respect to such factual matters is in the possession of the Company, unless such counsel knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with respect to such matters are erroneous.

Where any Person is required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Indenture, they may, but need not, be consolidated and form one instrument.

Section 1.6     Acts of Holders; Record Dates.

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted by this Indenture to be given, made or taken by Holders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by their agent duly appointed in writing; and, except as herein otherwise expressly provided such action shall become effective when such instrument or instruments are delivered to the Trustee and, where it is hereby expressly required, to the Company. Such instrument or instruments (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Holders signing such instrument or instruments. Proof of execution of any such instrument or of a writing appointing any such agent shall be sufficient for any purpose of this Indenture and (subject to Section 6.1 ) conclusive in favor of the Trustee and the Company, if made in the manner provided in this Section.

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(b) The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by a certificate of a notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged to him the execution thereof. Where such execution is by a signer acting in a capacity other than his individual capacity, such certificate or affidavit shall also constitute sufficient proof of his authority. The fact and date of the execution of any such instrument or writing, or the authority of the Person executing the same, may also be proved in any other manner which the Trustee deems sufficient.

(c) Subject to TIA Section 316(c), the Company may fix any day as the record date for the purpose of determining the Holders of Securities of any series entitled to give or take any request, demand, authorization, direction, notice, consent, waiver or other action, or to vote on any action, authorized or permitted to be given or taken by Holders of Securities of such series. If not set by the Company prior to the first solicitation of a Holder of Securities of such series made by any Person in respect of any such action, or, in the case of any such vote, prior to such vote, the record date for any such action or vote shall be the 30th day (or, if later, the date of the most recent list of Holders required to be provided pursuant to Section 7.1 ) prior to such first solicitation or vote, as the case may be. With regard to any record date for action to be taken by the Holders of one or more series of Securities, only the Holders of Securities of such series on such date (or their duly designated proxies) shall be entitled to give or take, or vote on, the relevant action.

(d) The ownership of Securities shall be proved by the Security Register.

(e) Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any Security shall bind every future Holder of the same Security and the Holder of every Security issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be done by the Trustee or the Company in reliance thereon, whether or not notation of such action is made upon such Security.

Section 1.7     Notices, Etc., to Trustee and Company.

Any request, demand, authorization, direction, notice, consent, waiver or Act of Holders or other document provided or permitted by this Indenture to be made upon, given or furnished to, or filed with,

(1) the Trustee by any Holder or by the Company shall be sufficient for every purpose hereunder if made, given, furnished or filed in writing to or with the Trustee at its Corporate Trust Office, Attention: Corporate Trust Administration, or

(2) the Company by the Trustee or by any Holder shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to the Company addressed to it at the address of its principal office specified in the first paragraph of this instrument or at any other address previously furnished in writing to the Trustee by the Company, Attention: Treasurer.

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Section 1.8     Notice to Holders; Waiver.

Where this Indenture provides for notice to Holders of any event, such notice shall be sufficiently given (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to each Holder affected by such event, at his address as it appears in the Security Register, not later than the latest date (if any), and not earlier than the earliest date (if any), prescribed for the giving of such notice. In any case where notice to Holders is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed, to any particular Holder shall affect the sufficiency of such notice with respect to other Holders. Any notice mailed to a Holder in the manner herein prescribed shall be conclusively deemed to have been received by such Holder, whether or not such Holder actually receives such notice. Where this Indenture provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent to the validity of any action taken in reliance upon such waiver.

In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification as shall be made with the approval of the Trustee shall constitute a sufficient notification for every purpose hereunder.

Section 1.9     Conflict with Trust Indenture Act.

If any provision hereof limits, qualifies or conflicts with a provision of the TIA that is required under such Act to be a part of and govern this Indenture, the latter provision shall control. If any provision of this Indenture modifies or excludes any provision of the TIA that may be so modified or excluded, the latter provision shall be deemed to apply to this Indenture as so modified or to be excluded, as the case may be.

Section 1.10     Effect of Headings and Table of Contents.

The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

Section 1.11     Successors and Assigns.

All covenants and agreements in this Indenture by the Company shall bind its successors and assigns, whether so expressed or not.

Section 1.12     Separability Clause.

In case any provision in this Indenture or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

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Section 1.13     Benefits of Indenture.

Nothing in this Indenture or in the Securities, express or implied, shall give to any Person, other than the parties hereto and their successors hereunder and the Holders, any benefit or any legal or equitable right, remedy or claim under this Indenture.

Section 1.14     Governing Law.

THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO ANY CONFLICTS OF LAWS PRINCIPLES INCONSISTENT THEREWITH.

Section 1.15     Legal Holidays.

In any case where any Interest Payment Date, Redemption Date, Stated Maturity or Maturity of any Security shall not be a Business Day at any Place of Payment, then (notwithstanding any other provision of this Indenture or of the Securities (other than a provision of the Securities of any series which specifically states that such provision shall apply in lieu of this Section)) payment of interest or principal (and premium, if any) need not be made at such Place of Payment on such date, but may be made on the next succeeding Business Day at such Place of Payment with the same force and effect as if made on the Interest Payment Date, the Redemption Date, or at the Stated Maturity or Maturity; provided, that no interest shall accrue for the intervening period.

ARTICLE 2

SECURITY FORMS

Section 2.1     Forms and Dating.

(a) Forms Generally. The Securities of each series shall be in substantially the form set forth in Exhibit A , or in such other form as shall be established by or pursuant to a Board Resolution or in one or more indentures supplemental hereto, in each case with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture, and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon as may be required to comply with the rules of any securities exchange or Depositary therefor or as may, consistently herewith, be determined by the officers executing such Securities, as evidenced by their execution of the Securities. If the form of Securities of any series is established by, or by action taken pursuant to, a Board Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of the Authentication Order contemplated by Section 3.3 for the authentication and delivery of such Securities.

Each of the securities shall be dated the date of its authentication.

The terms and provisions contained in the Securities shall constitute, and are hereby expressly made, a part of this Indenture and the Company and the Trustee, by their execution and

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delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any of the Securities conflicts with the express provisions of this Indenture, the provisions of this Indenture shall govern and be controlling.

(b) Global Securities. Securities offered and sold under this indenture may be issued initially in the form of one or more Global Securities in registered form without interest coupons, substantially in the form of Exhibit A attached hereto with the appropriate legends required by Section 2.2 of this Indenture, which shall be deposited with the Trustee, as custodian for the Depositary, duly executed by the Company and authenticated by the Trustee as hereinafter provided. Each of the Securities shall represent such of the outstanding Securities as shall be specified therein and each shall provide that it shall represent the aggregate principal amount of any outstanding Guarantees from time to time endorsed thereon and that the aggregate principal amount of outstanding Securities represented thereby may from time to time be reduced or increased, as appropriate. Any endorsement of a Global Security to reflect the amount of any increase or decrease in the aggregate principal amount of outstanding Securities represented thereby shall be made by the Trustee, in accordance with instructions given by the Holder thereof as required herein;

(c) Temporary Securities. Securities may be issued initially in the form of one or more temporary securities in registered form without interest coupons, substantially in the form of Exhibit A attached hereto (a “ Temporary Security ”) with the appropriate legends required by this Indenture, which shall be deposited with the Trustee, as custodian for the Depositary, and registered in (1) in the case of Global Securities, the name of the Depositary or the nominee of the Depositary for the accounts of designated agents, and (2) in the caser of Physical Securities in the names of the Holders, in each case, duly executed by the Company and authenticated by the Trustee as hereinafter provided.

(d) Definitive Securities. The definitive Securities shall be printed, lithographed or engraved on steel engraved borders or may be produced in any other manner permitted by the rules of any securities exchange on which the Securities may be listed, all as determined by the officers executing such Securities, as evidenced by their execution of such Securities.

Section 2.2     Additional Provisions Required in Global Securities.

Any Global Security issued hereunder shall, in addition to the provisions contained in Exhibit A and in addition to any legend required by the Depositary, bear a legend in substantially the following form:

“This Security is a Global Security within the meaning of the Indenture hereinafter referred to and is registered in the name of a Depositary or a nominee of a Depositary. This Security is exchangeable for Securities registered in the name of a Person other than the Depositary or its nominee only in the limited circumstances described in the Indenture and may not be transferred except as a whole by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary.”

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“Unless and until it is exchanged in whole or in part for Securities in definitive form, this Security may not be transferred except as a whole by the Depositary to a nominee of the Depositary, or by any such nominee of the Depositary, or by the Depositary or nominee of a successor Depositary, or any nominee to a successor Depositary or a nominee of such successor Depositary. Transfers of this Global Security shall be limited to transfers in whole, but not in part, to nominees of [insert name of nominee], or to a successor thereof or such successor’s nominee, and transfers of portions of this Global Security shall be limited to transfers made in accordance with the restrictions set forth in the Indenture.

Unless this certificate is presented by an authorized representative of the [name of Depository] (“[ · ]”), to the Company or its agent for registration of transfer, exchange or payment, and any certificate issued is registered in the name of [insert name of nominee], or such other name as is requested by an authorized representative of the Depositary (and any payment hereon is made to [insert name of nominee] or to such other entity as is requested by an authorized representative of [insert name of nominee]), any transfer, pledge or other use hereof for value or otherwise by or to any person is wrongful inasmuch as the registered owner hereof, [insert name of nominee], has an interest herein.”

Section 2.3     Form of Trustee’s Certificate of Authentication.

The Trustee’s certificate of authentication shall be in substantially the form in Exhibit A :

Section 2.4     Issuance of Physical Securities; Book-Entry Provisions for Global Securities

(a) The Global Securities initially shall (1) be registered in the name of the Depositary or the nominee of such Depositary, (2) be delivered to the Trustee as custodian for such Depositary and (3) bear the appropriate legends as set forth in Section 2.2 .

(b) Members of, or participants in, the Depositary ( “Agent Members” ) shall have no rights under this Indenture with respect to any Global Security held on their behalf by the Depositary, or the Trustee as its custodian, or under the Global Security, and the Depositary may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of the Global Security for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or impair, as between the Depositary and its Agent Members, the operation of customary practices governing the exercise of the rights of a Holder of any Security.

(c) Transfers of any Global Security shall be limited to transfers in whole, but not in part, to the Depositary, its successors or their representative nominees. Except as provided below, owners of beneficial interests in Global Securities will not be entitled to receive Physical Securities. If required to do so pursuant any applicable law or regulation, beneficial owners may obtain Physical Securities in exchange for their beneficial interests in a Global Security upon written request in accordance with the Depositary’s and the Registrar’s procedures. In addition, Physical Securities shall be transferred to all beneficial owners in exchange for their beneficial interests in a Global Security of a particular series if (1) the Depositary notifies the Company that it is unwilling or unable to continue as depositary for such Global Security or the Depositary

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ceases to be a clearing agency registered under the Exchange Act, at a time when the Depositary is required to be so registered in order to act as depositary, and in each case a successor depositary is not appointed by the Company within ninety (90) days of such notice, or (2) the Company executes and delivers to the Trustee and Registrar an Officers’ Certificate stating that such Global Security shall be so exchangeable, or (3) an Event of Default has occurred and is continuing with respect to such series and the Registrar has received a written request from the Depositary to issue Physical Securities.

(d) In connection with any transfer or exchange of a portion of the beneficial interest in a Global Note to beneficial owners in the form of Physical Securities pursuant to Section 2.4(c) , the Registrar shall (if one or more Physical Securities are to be issued) upon satisfaction of all of the requirements for transfer or exchange contained in this Indenture and the Securities or otherwise applicable under the Securities Act reflect on its books and records the date and a decrease in the principal amount of the beneficial interest in such Global Security to be transferred, and the Company shall execute, and the Trustee shall authenticate and deliver, one or more Physical Securities of like tenor and amount.

(e) In connection with the transfer of an entire Global Security to beneficial owners in the form of Physical Securities pursuant to Section 2.4(c) , such Global Security shall be deemed to be surrendered to the Trustee for cancellation, and the Company shall execute, and the Trustee shall authenticate and deliver, to each beneficial owner identified by the Depositary in exchange for its beneficial interest in such Global Security, an equal aggregate principal amount of Physical Securities of authorized denominations.

(f) The Holder of a Global Security may grant proxies and otherwise authorize any Person, including Agent Members and Persons that may hold interests through Agent Members, to take any action which a Holder is entitled to take under this Indenture or the Securities.

(g) With respect to any Global Security, the Company, the Registrar and the Trustee shall be entitled to treat the Person in whose name such Global Security is registered as the absolute owner of such Security for all purposes of this Indenture, and neither the Company, the Registrar nor the Trustee shall have any responsibility or obligation to any Agent Members or other beneficial owners of the Securities represented by such Global Security. Without limiting the immediately preceding sentence, neither the Company, the Registrar nor the Trustee shall have any responsibility or obligation with respect to (1) the accuracy of the records of any Depositary or any other Person with respect to any ownership interest in any Global Security, (2) the delivery to any Person, other than a Holder, of any notice with respect to the Securities represented by a Global Security, including any notice of redemption or refunding, (3) the selection of the particular Securities or portions thereof to be redeemed or refunded in the event of a partial redemption or refunding of part of the Securities outstanding, or (4) the payment to any Person, other than a Holder, of any amount with respect to the principal of, redemption premium, if any, purchase price or interest (including contingent Interest and Liquidated Damages) with respect to any Global Security.

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ARTICLE 3

THE SECURITIES

Section 3.1     Amount Unlimited; Issuable in Series.

The aggregate principal amount of Securities which may be authenticated and delivered under this Indenture is unlimited.

The Securities may be issued from time to time in one or more series. There shall be established in or pursuant to a Board Resolution and, subject to Section 3.3 , set forth, or determined in the manner provided, in an Officers’ Certificate, or established in one or more indentures supplemental hereto, prior to the issuance of Securities of any series,

(1) the title of the Securities of the series (which shall distinguish the Securities of the series from Securities of any other series);

(2) any limit upon the aggregate principal amount of the Securities of the series which may be authenticated and delivered under this Indenture (except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities of the series pursuant to Section 3.4 , Section 3.5 , Section 3.6 , Section 9.6 or Section 11.7 and except for any Securities which, pursuant to Section 3.3 , are deemed never to have been authenticated and delivered hereunder);

(3) the Person to whom any interest on a Security of the series shall be payable, if other than the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest;

(4) the date or dates on which the principal of and premium, if any, on the Securities of the series is payable, or method by which such date or dates shall be determined or extended;

(5) the rate or rates at which the Securities of the series shall bear interest, if any, or the method of calculating such rate or rates of interest, the date or dates from which such interest shall accrue or the method by which such date or dates shall be determined, the Interest Payment Dates on which any such interest shall be payable and the Regular Record Date for any interest payable on any Interest Payment Date;

(6) if other than the Corporate Trust Office of the Trustee, the place or places where the principal of and any premium and interest on Securities of the series shall be payable or where Securities of a series may be surrendered for registration of transfer or exchange;

(7) the period or periods within which, the price or prices at which, the currency or currencies, currency units or composite currencies in which and the other terms and conditions upon which Securities of the series may be redeemed, in whole or in part, at the option of the Company;

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(8) the obligation, if any, of the Company to redeem or purchase Securities of the series pursuant to any sinking fund or analogous provisions or at the option of a Holder thereof and the period or periods (or the methods of determination of such a period or periods) within which, the price or prices at which and the other terms and conditions upon which Securities of the series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;

(9) if other than denominations of $1,000 and any integral multiple thereof, the denominations in which Securities of the series shall be issuable;

(10) the currency, currencies, currency units or composite currencies in which the Securities of the series will be issued and/or in which payment of the principal of and any premium and interest on any Securities of the series shall be payable if other than the currency of the United States of America and the manner of determining the equivalent thereof in the currency of the United States of America for purposes of the definition of “Outstanding” in Section 1.1 ;

(11) if the amount of payments of principal of or any premium or interest on any Securities of the series may be determined with reference to an index, formula or other method, the index, formula or other method by which such amounts shall be determined;

(12) if the amount Outstanding of an indexed security for purposes of the definition of “Outstanding” is to be other than the principal face amount at original issuance, the method of determination of such amount;

(13) if the principal of or any premium or interest on any Securities of the series is to be payable, at the election of the Company or a Holder thereof, in one or more currencies, currency units or composite currencies other than that or those in which the Securities are stated to be payable, the currency, currencies, currency units or composite currencies in which payment of the principal of and any premium and interest on Securities of such series as to which such election is made shall be payable, and the periods within which and the other terms and conditions upon which such election is to be made;

(14) if other than the principal amount thereof, the portion of the principal amount of Securities of the series which shall be payable upon declaration of acceleration of the Maturity thereof pursuant to Section 5.2 or the method by which such portion shall be determined;

(15) if either or both of Section 13.2 or Section 13.3 does not apply to the Securities of any series;

(16) whether the Securities of the series shall be issued in whole or in part in the form of one or more Book-Entry Securities and, in such case, the Depositary with respect to such Book-Entry Security or Securities and the circumstances under which any Book-Entry Security may be registered for transfer or exchange, or authenticated and

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delivered, in the name of a Person other than such Depositary or its nominee, if other than as set forth in Section 305;

(17) the rights, if any, of a Holder to renew or extend the maturity of the Securities of the series;

(18) the obligation, if any, of the Company to permit the conversion or exchange of the Securities of the series into the Company’s common stock, preferred stock or other securities, and the terms and conditions upon which such conversion or exchange may be effected (including, without limitation, the initial conversion price or rate, the conversion period, the conversion agent, any adjustment of the applicable conversion price or rate and any requirements relative to the reservation or such shares or securities for purposes of such conversion;

(19) the terms, if any, pursuant to which the Securities of the series will be made subordinate in right of payment to senior indebtedness of the Company, and the terms of such subordination;

(20) any additional, modified or different covenants or Events of Default applicable to one or more particular series of Securities;

(21) whether the Securities of a series will be issued as part of units consisting of Securities and other securities of the Company or another issuer; and

(22) any other terms of the series (which terms shall not be inconsistent with the provisions of this Indenture, except as permitted by Section 9.1(5) ).

All Securities of any one series shall be substantially identical except as to denomination and except as may otherwise be provided in or pursuant to the Board Resolution referred to above and (subject to Section 3.3 ) set forth, or determined in the manner provided, in the Officers’ Certificate referred to above or in any such indenture supplemental hereto. All Securities of any one series need not be issued at the same time and, unless otherwise provided, a series may be reopened, without the consent of the Holders, for issuances of additional Securities of such series.

If any of the terms of the series are established by action taken pursuant to a Board Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of the Officers’ Certificate setting forth, or providing the manner for determining, the terms of the series.

Section 3.2     Denominations.

The Securities of each series shall be issuable in registered form without coupons in such denominations as shall be specified as contemplated by Section 3.1 . In the absence of any such provisions with respect to the Securities of any series, the Securities of such series shall be issuable in denominations of $1,000 and any integral multiple thereof.

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Section 3.3     Execution, Authentication, Delivery and Dating.

(a) The Securities shall be executed on behalf of the Company by its Chairman of the Board, its Chief Executive Officer, its President, its Chief Financial Officer or one of its Vice Presidents, under its corporate seal reproduced thereon attested by its Secretary or one of its Assistant Secretaries. The signature of any of these officers on the Securities may be manual or facsimile.

(b) Securities bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Company shall bind the Company, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Securities or did not hold such offices at the date of such Securities.

(c) At any time and from time to time after the execution and delivery of this Indenture, the Company may deliver Securities of any series executed by the Company to the Trustee for authentication, together with an Order of the Authentication for the authentication and delivery of such Securities (an “ Authentication Order ”), and the Trustee in accordance with the Authentication Order shall authenticate and deliver or make available for delivery such Securities; provided, however, that in the case of Securities of a series that are not to be originally issued at one time, the Trustee shall authenticate and deliver or make available for delivery such Securities from time to time in accordance with such other procedures (including, without limitation, the receipt by the Trustee of oral or electronic instructions from the Company or its duly authorized agents, promptly confirmed in writing) acceptable to the Trustee as may be specified by or pursuant to an Authentication Order delivered to the Trustee prior to the time of the first authentication of Securities of such series. If the form or forms or terms of the Securities of the series have been established in or pursuant to one or more Board Resolutions as permitted by Sections 2.1 and Section 3.1 , in authenticating such Securities, and accepting the additional responsibilities under this Indenture in relation to such Securities, the Trustee shall be entitled to receive, and (subject to Section 6.1 ) shall be fully protected in relying upon, an Opinion of Counsel stating:

(1) if the form or forms of such Securities have been established by or pursuant to Board Resolution as permitted by Section 2.1 , that such form or forms have been established in conformity with the provisions of this Indenture;

(2) if the terms of such Securities have been, or in the case of Securities of a series that are not to be originally issued at one time, will be established by or pursuant to Board Resolution as permitted by Section 3.1 , that such terms have been, or in the case of Securities of a series that are not to be originally issued at one time, will be established in conformity with the provisions of this Indenture, subject, in the case of Securities of a series that are not to be originally issued at one time, to any conditions specified in such Opinion of Counsel; and

(3) that such Securities, when authenticated and delivered by the Trustee and issued by the Company in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute valid and legally binding obligations of the Company enforceable in accordance with their terms, subject to bankruptcy, insolvency, fraudulent

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transfer, reorganization, moratorium and similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles; provided, that such Opinion of Counsel need express no opinion as to whether a court in the United States would render a money judgment in currency other than that of the United States.

(d) If such form or forms or terms have been so established, the Trustee shall not be required to authenticate such Securities if the issue of such Securities pursuant to this Indenture will affect the Trustee’s own rights, duties or immunities under the Securities and this Indenture or otherwise in a manner which the Trustee determines would expose it to personal liability.

(e) Notwithstanding the provisions of Section 3.1 and of Section 3.3(d) , if all Securities of a series are not to be originally issued at one time, it shall not be necessary to deliver the Officers’ Certificate otherwise required pursuant to Section 3.1 or the Authentication Order and Opinion of Counsel otherwise required pursuant to such preceding paragraph at or prior to the time of authentication of each Security of such series if such documents, with appropriate modifications to cover such future issuances, are delivered at or prior to the authentication upon original issuance of the first Security of such series to be issued.

(f) If the Company shall establish pursuant to Section 3.1 that the Securities of a series are to be issued in whole or in part in the form of one or more Global Securities, then the Company shall execute and the Trustee shall, in accordance with this Section and the Authentication Order with respect to such series, authenticate and deliver or make available for delivery one or more Securities in such form that (1) shall represent and shall be denominated in an amount equal to the aggregate principal amount of the Outstanding Securities of such series to be represented by such Global Security or Global Securities, (2) shall be registered in the name of the Depositary for such Global Security or Global Securities or the nominee of such Depositary, (3) shall be delivered by the Trustee to such Depositary or pursuant to such Depositary’s instruction, and (4) shall bear the legend(s) set forth in Section 2.2 .

(g) Unless otherwise established pursuant to Section 3.1 , each Depositary designated pursuant to Section 3.1 for a Global Security must, at the time of its designation and at all times while it serves as Depositary, be a clearing agency registered under the Securities Exchange Act of 1934 and any other applicable statute or regulation. The Trustee shall have no responsibility to determine if the Depositary is so registered. Each Depositary shall enter into an agreement with the Trustee governing the respective duties and rights of such Depositary and the Trustee with regard to Global Securities.

(h) Each Security shall be dated the date of its authentication.

(i) No Security shall be entitled to any benefit under this Indenture or be valid or obligatory for any purpose unless there appears on such Security a certificate of authentication substantially in the form provided for herein executed by the Trustee by manual signature of an authorized officer thereof, and such certificate upon any Security shall be conclusive evidence, and the only evidence, that such Security has been duly authenticated and delivered hereunder. Notwithstanding the foregoing, if any Security shall have been authenticated and delivered hereunder but never issued and sold by the Company, and the Company shall deliver such Security to the Trustee for cancellation as provided in Section 3.9 , for all purposes of this

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Indenture such Security shall be deemed never to have been authenticated and delivered hereunder and shall never be entitled to the benefits of this Indenture.

Section 3.4     Temporary Securities.

Pending the preparation of definitive Securities of any series, the Company may execute, and upon an Authentication Order the Trustee shall authenticate and deliver or make available for delivery, temporary Securities which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized denomination, substantially of the tenor of the definitive Securities in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the officers executing such Securities may determine, as evidenced by their execution of such Securities.

If temporary Securities of any series are issued, the Company will cause definitive Securities of that series to be prepared without unreasonable delay. After the preparation of definitive Securities of such series the temporary Securities of such series shall be exchangeable for definitive Securities of such series upon surrender of the temporary Securities of such series at the office or agency of the Company in a Place of Payment for that series, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Securities of any series the Company shall execute and the Trustee shall authenticate and deliver or make available for delivery in exchange therefor one or more definitive Securities of the same series, of any authorized denominations and of a like aggregate principal amount and tenor. Until so exchanged the temporary Securities of any series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of such series and tenor.

Section 3.5     Registration; Registration of Transfer and Exchange.

(a) The Company shall cause to be kept at the Corporate Trust Office of the Trustee a register (the register maintained in such office and in any other office or agency of the Company in a Place of Payment being herein sometimes collectively referred to as the “ Security Register ”) in which, subject to such reasonable regulations as it may prescribe, the Company shall provide for the registration of Securities and of transfers of Securities. The Trustee is hereby appointed “Security Registrar” for the purpose of registering Securities and transfers of Securities as herein provided.

(b) Notwithstanding anything herein to the contrary, there shall be only one Security Register with respect to each series of Securities.

(c) Upon surrender for registration of transfer of any Security of any series at the office or agency of the Company in a Place of Payment for that series, the Company shall execute, and the Trustee shall authenticate and deliver or make available for delivery, in the name of the designated transferee or transferees, one or more new Securities of the same series, of any authorized denominations and of a like aggregate principal amount and tenor.

(d) At the option of the Holder, Securities of any series may be exchanged for other Securities of the same series, of any authorized denominations and of a like aggregate principal amount and tenor, upon surrender of the Securities to be exchanged at such office or agency.

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(e) Whenever any Securities are so surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver or make available for delivery, the Securities which the Holder making the exchange is entitled to receive.

(f) All Securities issued upon any registration of transfer or exchange of Securities shall be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Securities surrendered upon such registration of transfer or exchange.

(g) Every Security presented or surrendered for registration of transfer or for exchange shall (if so required by the Company, the Security Registrar or the Trustee) be duly endorsed or be accompanied by a written instrument of transfer in form satisfactory to the Company, the Security Registrar and the Trustee duly executed, by the Holder thereof or his attorney duly authorized in writing.

(h) No service charge shall be made for any registration of transfer or exchange of Securities, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Securities, other than exchanges pursuant to Section 3.4 , Section 9.6 or Section 11.7 not involving any transfer.

(i) The Company shall not be required (1) to issue, register the transfer of or exchange Securities of any series during a period beginning at the opening of business fifteen (15) days before the day of the mailing of a notice of redemption of Securities of that series selected for redemption under Section 11.3 and ending at the close of business on the day of such mailing, or (2) to register the transfer of or exchange any Security so selected for redemption in whole or in part, except the unredeemed portion of any Security being redeemed in part.

(j) Notwithstanding the foregoing, any Global Security shall be exchangeable pursuant to this Section 3.5 for Securities registered in the names of Persons other than the Depositary for such Security or its nominee only if (1) such Depositary notifies the Company that it is unwilling or unable to continue as Depositary for such Global Security or if at