105 STAT. 870 PUBLIC LAW 102-141—OCT. 28, 1991 Provided, That such credits received as exchanged allowances or proceeds of sales of personal property may be used in whole or part payment for acquisition of similar items, to the extent and in the manner authorized by law, without reimbursement to the Treasury. SEC. 612. No part of any appropriation contained in this or any other Act shall be available for interagency financing of boards, commissions, councils, committees, or similar groups (whether or not they are interagency entities) which do not have a prior and specific statutory approval to receive financial support from more than one agency or instrumentality. SEC. 613. Funds made available by this or any other Act to the "Postal Service Fund" (39 U.S.C. 2003) shall be available for employ- ment of guards for all buildings and areas owned or occupied by the Postal Service and under the charge and control of the Postal Service, and such guards shall have, with respect to such property, the powers of special policemen provided by the first section of the Act of June 1, 1948, as amended (62 Stat. 281; 40 U.S.C. 318), and, as to property owned or occupied by the Postal Service, the Postmaster General may take the same actions as the Administrator of General Services may take under the provisions of sections 2 and 3 of the Act of June 1, 1948, as amended (62 Stat. 281; 40 U.S.C. 318a, 318b), attaching thereto penal consequences under the authority and within the limits provided in section 4 of the Act of June 1, 1948, as amended (62 Stat. 281; 40 U.S.C. 318c). SEC. 614. None of the funds made available pursuant to the provisions of this Act shall be used to implement, administer, or enforce any regulation which has been disapproved pursuant to a resolution of disapproval duly adopted in accordance with the applicable law of the United States. SEC. 615. No part of any appropriation contained in, or funds made available by, this or any other Act, shall be available for any agency to pay to the Administrator of the General Services Administration a higher rate per square foot for rental of space and services (established pursuant to section 210(j) of the Federal Property and Administrative Services Act of 1949, as amended) than the rate per square foot established for the space and services by the General Services Administration for the fiscal year for which appropriations were granted. Government SEC. 616. (a) Notwithstanding any other provision of law, and employees. except as otherwise provided in this section, no part of any of the 5 USC 5343 note, f^nds appropriated for the fiscal years ending September 30, 1992, or September 30, 1993, 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, or any employee covered by section 5348 of that title— (1) during the period from the date of expiration of the limitation imposed by section 612 of the Treasury, Postal Service, and General Government Appropriations Act, 1991, until the first day of the first applicable pay period that begins not less than ninety days after that date, in an amount that exceeds the rate payable for the applicable grade and step of the applicable wage schedule in accordance with such section 612; and (2) during the period consisting of the remainder, if any, of fiscal year 1992, and that portion of fiscal year 1993, that precedes the normal effective date of the applicable wage survey adjustment that is to be effective in fiscal year 1993, in an amount that exceeds, as a result of a wage survey adjustment.