5309 of title 49, United States Code, $2,613,650,000 to remain available until September 30, 2022: Provided , That of the amounts made available under this heading, $2,221,602,500 shall be obligated by December 31, 2020: Provided further , That of the amounts made available under this heading, $835,700,000 shall be available for new fixed guideway projects, that have executed full funding grant agreements, authorized under subsection (d) of such section, $500,000,000 shall be available for new projects authorized under such section, $200,000,000 shall be available for core capacity improvement projects, that have executed full funding grant agreements, authorized under subsection (e) of such section, $550,000,000 shall be available for new projects authorized under such section, and $502,150,000 shall be available for small starts projects authorized under subsection (h) of such section: Provided further , That the Secretary shall continue to administer the capital investment grant program in accordance with the procedural and substantive requirements of section 5309 of such title. 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 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 prior to approving such grants, the Secretary shall certify that the Washington Metropolitan Area Transit Authority is making progress to improve its safety management system in response to the Federal Transit Administration’s 2015 safety management inspection: Provided further , That the Secretary shall determine that the Washington Metropolitan Area Transit Authority has placed the highest priority on those investments that