TO ACUITY BRANDS, INC AMENDED AND RESTATED SEVERANCE AGREEMENT

Exhibit 10(iii)A(81)

AMENDMENT No. 1

TO

ACUITY BRANDS, INC

AMENDED AND RESTATED SEVERANCE AGREEMENT

THIS AMENDMENT made and entered into as of the 28 ^th day of October, 2009, by and between ACUITY BRANDS, INC. (the “Company”) and RICHARD K. REECE (“Executive”);

W I T N E S S E T H

WHEREAS, the Company and Executive entered into a Severance Agreement, dated as of April 21, 2006 (“Severance Agreement”), providing for the payment of certain compensation and benefits to Executive if Executive’s employment is terminated under certain circumstances; and

WHEREAS, the parties now desire to amend the Severance Agreement in the manner hereinafter provided;

NOW, THEREFORE, the Severance Agreement is hereby amended, as follows:

1.

Section 4.2 is hereby amended by deleting the present section in its entirety and substituting the following in lieu thereof: