further, That amounts made available under this heading shall not be subject to any limitation on obligations set forth in this or any other Act. CAPITAL INVESTMENT GRANTS For necessary expenses to carry out fixed guideway capital investment grants under section 5309 of title 49, United States Code, and section 3005(b) of the Fixing America's Surface Transportation Act ( Public Law 114–94 ), $392,204,000, to remain available until expended, of which $388,281,960 shall be available for projects authorized under section 5309(d) of title 49, United States Code. GRANTS TO THE WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY For grants to the Washington Metropolitan Area Transit Authority as authorized under section 601 of division B of the Passenger Rail Investment and Improvement Act of 2008 ( Public Law 110–432 ), $150,000,000, to remain available until expended: Provided, That the Secretary of Transportation shall approve grants for capital and preventive maintenance expenditures for the Washington Metropolitan Area Transit Authority only after receiving and reviewing a request for each specific project: Provided further, That the Secretary shall determine that the Washington Metropolitan Area Transit Authority has placed the highest priority on those investments that will improve the safety of the system before approving such grants. ADMINISTRATIVE PROVISIONS—FEDERAL TRANSIT ADMINISTRATION 160. The limitations on obligations for the programs of the Federal Transit Administration shall not apply to any authority under 49 U.S.C. 5338 , previously made available for obligation, or to any other authority previously made available for obligation. 161. Notwithstanding any other provision of law, funds appropriated or limited by this Act under the heading Capital Investment Grants of the Federal Transit Administration for projects specified in this Act not obligated by September 30, 2027, and other recoveries, shall be directed to projects eligible to use the funds for the purposes for which they were originally