of the Treasury during fiscal year 2018. 313. Not later than 90 days after the date of enactment of this Act, the Secretary of the Department of Energy, in consultation with the Office of Management and Budget, shall submit a report to the Committees on Appropriations of both Houses of Congress that provides a detailed explanation, using specific receipts data and legal authorities, of how each of the Western Area Power Administration, the Southwestern Area Power Administration, and the Southeastern Power Administration are executing current receipt authority provided in this and prior year appropriations Acts to create carryover of unobligated balances for purchase power and wheeling expenditures. IV Independent agencies Appalachian regional commission For expenses necessary to carry out the programs authorized by the Appalachian Regional Development Act of 1965, and for expenses necessary for the Federal Co-Chairman and the Alternate on the Appalachian Regional Commission, for payment of the Federal share of the administrative expenses of the Commission, including services as authorized by 5 U.S.C. 3109 , and hire of passenger motor vehicles, $142,000,000, to remain available until expended. Defense nuclear facilities safety board Salaries and expenses For expenses necessary for the Defense Nuclear Facilities Safety Board in carrying out activities authorized by the Atomic Energy Act of 1954, as amended by Public Law 100–456 , section 1441, $30,000,000, to remain available until September 30, 2019. Delta regional authority Salaries and expenses For expenses necessary for the Delta Regional Authority and to carry out its activities, as authorized by the Delta Regional Authority Act of 2000, notwithstanding sections 382F(d), 382M, and 382N of said Act, $25,000,000, to remain available until expended. Denali commission For expenses necessary for the Denali Commission including the purchase, construction, and acquisition of plant and capital equipment as necessary and other expenses, $15,000,000, to remain