Exhibit 10(d)31 SECOND AMENDMENT TO DECOMMISSIONING TRUST AGREEMENT This Second Amendment to Decommissioning Trust Agreement ("Second Amendment") made effective as of the 1st day of November, 1995 by and between Gulf States Utilities Company (the "Company"), and Mellon Bank, N.A. (the "Successor Trustee"). WHEREAS, on March 15, 1989, the Company and Morgan Guaranty Trust Company of New York (the "Trustee") entered into a Decommissioning Trust Agreement (the "Trust Agreement"), which provided for the establishment and maintenance of a nuclear decommissioning reserve fund (the "Trust Fund") to hold and invest revenues collected by the Company for the decommissioning of Unit No. 1 of the River Bend Steam Electric Generating Station; and WHEREAS, as of April 8, 1992, in connection with the promulgation of certain rules by the Public Utility Commission of Texas applicable to the investment or reinvestment of funds held under the Trust Agreement, the Company and the Trustee entered into Amendment No. 1 to Decommissioning Trust Agreement (the "First Amendment"); and WHEREAS, the Company wishes to remove the Trustee, continue to maintain the Trust Fund, and appoint Mellon Bank, N.A. as Successor Trustee; and WHEREAS, Mellon Bank, N.A. is a national banking association with trust powers and has full power and authority to enter into this Second Amendment; and WHEREAS, Mellon Bank, N.A. is willing to serve as Successor Trustee on the terms and conditions herein set forth; NOW, THEREFORE, the Company and Mellon Bank, N.A. agree as follows: 1. In accordance with section 6.01 of the Trust Agreement, as amended by the First Amendment, the Company hereby appoints Mellon Bank, N.A. as Successor Trustee of the Trust Fund, and Mellon Bank, N.A. hereby accepts such appointment. 2. "Successor Trustee" shall mean Mellon Bank, N.A. and any successor thereto. 3. "First Amendment" shall mean the Trust Agreement, as amended by Amendment No. 1 to Decommissioning Trust Agreement made effective on April 8, 1992. 4. The Company and the Successor Trustee agree to be bound by the terms of the First Amendment, with the following modifications: a. The definitions of "Contribution," "Investment Account," and "Order" in Article I of the First Amendment are hereby amended by replacing "Trustee" with "Successor Trustee." b. All pertinent sections of the First Amendment are hereby amended by replacing "Trustee" with "Successor Trustee" unless the context clearly requires otherwise. c. Section 2.01 of the First Amendment is hereby amended by adding the following additional sentence at its conclusion: "The assets of the Qualified Fund may be used only in a manner authorized by Section 468A of the Code and the regulations thereunder." d. Section 2.03 of the First Amendment is hereby amended to provide as follows: "Acceptance of Appointment. Upon the terms and conditions herein set forth, Mellon Bank, N.A. accepts the appointment as Successor Trustee of this Trust and each of the Funds. Notwithstanding its acceptance of this appointment, the Successor Trustee shall not be responsible for the adequacy of the assets of the Trust to pay amounts reflected in any Certificate and shall make such payments only to the extent of the assets of the Trust. The Successor Trustee shall receive any Contributions transferred to it by the Company and shall hold, manage, invest and administer such Contributions, together with earnings and appreciation thereon. Notwithstanding the foregoing sentence, the Successor Trustee is under no duty to compel the Company to make any Contribution to the Trust or to inquire into or otherwise verify the correctness, accuracy or amount of any such Contribution." e. Section 2.08 of the First Amendment is hereby amended by adding the following additional sentence at its conclusion: "The Agreement cannot be amended to violate Section 468A of the Code or the regulations thereunder." f. The sixth sentence of Section 7.01 of the First Amendment is hereby amended to provide as follows: "An Investment Manager shall certify in writing to the Trustee that it is registered under the Investment Advisers Act of 1940, or is a bank as defined in that Act, shall accept its appointment as Investment Manager, shall certify the identity of the person or persons authorized to give instructions or directions to the Trustee on its behalf, including specimen signatures, and shall undertake to perform the duties imposed on it under an Investment Manager Agreement." g. Add a new Section 8.09 to provide as follows: "Legal Proceedings. To commence or defend suits or legal proceedings and represent the Fund in all suits or legal proceedings in any court or before any other body or tribunal as the Trustee shall deem necessary to protect the Fund. Notwithstanding the provisions of this Article VIII, to the extent any fiduciary powers granted to the Trustee involve investment discretion over assets managed by an Investment Manager, and the Company does not otherwise direct the Trustee in the exercise of such power, the Trustee shall exercise such power at the direction of the Investment Manager." h. Paragraph (1) of Section 9.02 of the First Amendment is hereby amended to provide as follows: "Unless such investment is permitted to be made by Section 468A(e)(4)(c) of the Code, the regulations thereunder, and any applicable successor provisions; or" i. Section 9.05 of the First Amendment is hereby amended by adding the following wording to the end of the last sentence: "; and to hold uninvested cash in its commercial bank or that of an affiliate, as it shall deem reasonable or necessary; and to settle investments in any collective investment fund, including a collective investment fund maintained by the Trustee or an affiliate and appoint agents and sub-trustees; provided that to the extent that any investment is made in any such collective investment fund, the terms of the collective trust indenture shall solely govern the investment duties, responsibilities and powers of the trustee of such collective investment fund and , to the extent required by law, such terms, responsibilities and powers shall be incorporated herein by reference and shall be a part of this Agreement and provided further that the Company expressly understands and agrees that any such collective investment fund may provide for the lending of its securities by the collective investment fund trustee and that such collective investment fund trustee will receive compensation for the lending of securities that is separate from any compensation of the Trustee hereunder, or any compensation of the collective investment fund trustee for the management of such fund; to purchase or sell stock index future contracts from time to time only to provide liquidity for cash flows, and reduce tracking error due to dividend accruals. Notwithstanding anything else in this Agreement to the contrary, including, without limitation, any specific or general power granted to the Trustee and to the Investment Managers, including the power to invest in real property, no portion of the Fund shall be invested in real estate. For this purpose "real estate" includes direct interests in real property, leaseholds or mineral interests." j. Section 10.04 of the First Amendment is hereby amended to provide as follows: "Any notice required by this Agreement to be given to the Company or the Successor Trustee shall be deemed to have been properly given when mailed, postage prepaid, by registered or certified mail, to the person to be notified as set forth below: If to the Company: Gulf States Utilities Company P.O. Box 61000 New Orleans, Louisiana 70161 Attention: Steven C. McNeal If to the Successor Trustee: Mellon Bank, N.A. One Mellon Bank Center Room 3346 Pittsburgh, Pennsylvania 15258-0001 Attention: Earl G. Kleckner The Company or the Successor Trustee may change the above addresses by delivering notice thereof in writing to the other party." k. Section 10.06 of the First Amendment is hereby amended by replacing "New York" with "Texas". IN WITNESS WHEREOF, the parties hereto have caused this Second Amendment to be duly executed by their respective authorized officers as of the effective date indicated on the first page hereof. GULF STATES UTILITIES COMPANY MELLON BANK, N.A. Successor Trustee By: _________________________ By: _______________________________ William J. Regan, Jr. Title: Vice President Title: and Treasurer ____________________________ Date: Date: ____________________________ ____________________________ STATE OF LOUISIANA PARISH OF ORLEANS Personally came and appeared before me, the undersigned authority, in and for the jurisdiction aforesaid, __________________________________, who acknowledged to me that he is _____________________________________ of Gulf States Utilities Company and that he signed and delivered the foregoing instrument on the day and year therein mentioned as the act and deed of said corporation, having first been duly authorized so to do. Given under my hand and official seal on this the ___ day of _____________, 19____. ____________________________ NOTARY PUBLIC My Commission is issued for life. COMMONWEALTH OF PENNSYLVANIA COUNTY OF ALLEGHENY Personally came and appeared before me, the undersigned authority, in and for the jurisdiction aforesaid, ___________________________, who acknowledged to me that he is _________________________________ of Mellon Bank, N.A. and that he signed and delivered the foregoing instrument on the day and year therein mentioned as the act and deed of said corporation, having first been duly authorized so to do. Given under my hand and official seal on this the ___ day of _____________, 19____. _______________________ NOTARY PUBLIC My Commission Expires: _________________