; or (2) retires under any other provision of subchapter III of chapter 83 or chapter 84 of such title 5 and receives a payment as an incentive to separate, the separating agency shall remit to the Civil Service Retirement and Disability Fund an amount equal to the Office of Personnel Management's average unit cost of processing a retirement claim for the preceding fiscal year. Such amounts shall be available until expended to the Office of Personnel Management and shall be deemed to be an administrative expense under section 8348(a)(1)(B) of title 5, United States Code. 735. None of the funds made available in this or any other Act may be used to pay for the painting of a portrait of an officer or employee of the Federal Government, including the President, the Vice President, a member of Congress (including a Delegate or a Resident Commissioner to Congress), the head of an executive branch agency (as defined in section 133 of title 41, United States Code), or the head of an office of the legislative branch. 736. (a) (1) Notwithstanding any other provision of law, and except as otherwise provided in this section, no part of any of the funds appropriated for fiscal year 2021, by this or any other Act, may be used to pay any prevailing rate employee described in section 5342(a)(2)(A) of title 5, United States Code— (A) during the period from the date of expiration of the limitation imposed by the comparable section for the previous fiscal years until the normal effective date of the applicable wage survey adjustment that is to take effect in fiscal year 2021, in an amount that exceeds the rate payable for the applicable grade and step of the applicable wage schedule in accordance with such section