; and roads infrastructure maintenance, subject to approval by the Office of Management and Budget: Provided further, That amounts in the Fund may be obligated only after the Committees on Appropriations of the House of Representatives and the Senate are notified at least 15 days in advance of the planned use of funds. COST SHARE WAIVER 445. The Secretary of the Interior or the Secretary of Agriculture, may waive, in whole or in part, the non-Federal cost sharing requirement of any appropriate conservation project under section 212(a)(1) of the Public Lands Corps Act ( 16 U.S.C. 1729(a)(1) ): Provided, That in the event of such a waiver, the Secretary of the Interior or the Secretary of Agriculture, as appropriate, is authorized to pay up to 100 percent of the costs of the appropriate conservation project. WORLD WAR I CENTENNIAL COMMISSION 446. In addition to the authority provided by section 6(g) of the World War I Centennial Commission Act, as authorized by the World War I Centennial Commission Act ( Public Law 112–272 ) and the Carl Levin and Howard P. Buck McKeon National Defense Authorization Act for Fiscal Year 2015 ( Public Law 113–291 ), the World War I Commission may accept money, in-kind personnel services, contractual support, or any appropriate support from any executive branch agency for activities of the Commission. RESCISSION 447. Of the unobligated balances from discretionary amounts made available in fiscal year 2020 or before for the National Park Service, and derived from the Land and Water Conservation Fund, $100,000,000 is hereby permanently rescinded from grant programs with an unobligated carryover balance: Provided, That no amounts may be rescinded from amounts that were designated by the Congress as an emergency requirement pursuant to a concurrent resolution on the budget or the Balanced Budget and Emergency Deficit Control Act of 1985. RESCISSION 448. Of the unobligated balances from amounts made available by section 11001 of Public Law 117–2 $350,000,000 are hereby permanently