Pub. L. 91-144, tit. I, under "Operating Expenses"
Operating Expenses
Operating Expenses For necessary operating expenses of the Commission in carrying out the purposes of the Atomic Energy Act of 1954, as amended, including the employment of aliens; services authorized by 5 U.S.C. 3109; hire, maintenance, and operation of aircraft; publication and dissemination of atomic information; purchase, repair and cleaning of uniforms; official entertainment expenses (not to exceed $30,000); reimbursement of the General Services Administration for security guard services: hire of passenger motor vehicles; $1,862,269,000 and any moneys (except sums received from disposal of property under the Atomic Energy Community Act of 1955, as amended (42 U.S.C. 2301)) received by the Commission, notwithstanding the provisions of section 3617 of the Revised Statutes (31 U.S.C. 484), to remain available until expended: Provided, That of such amount $100,000 83 Stat. 324may be expended for objects of a confidential nature and in any such case the certificate of the Commission as to the amount of the expenditure and that it is deemed inadvisable to specify the nature thereof shall be deemed a sufficient voucher for the sum therein expressed to have been expended: Provided further, That from this appropriation transfers of sums may be made to other agencies of the Government for the performance of the work for which this appropriation is made, and in such cases the sums so transferred may be merged with the appropriation to which transferred: Provided further, That no part of this appropriation shall be used in connection with the payment of a fixed fee to any contractor or firm of contractors engaged under a cost-plus-a-fixed-fee contract or contracts at any installation of the Commission, where that fee for community management is at a rate in excess of $90,000 per annum, or for the operation of a transportation system where that fee is at a rate in excess of $45,000 per annum.