may be transferred to Department of Housing and Urban Development, Program Offices—Office of Housing for necessary costs of administering and overseeing the obligation and expenditure of amounts under this heading in this title, to remain available until September 30, 2028: Provided further, That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. Housing for the elderly (including transfer of funds) For an additional amount for assistance for Housing for the Elderly as authorized by section 202 of the Housing Act of 1959, as amended, $750,000,000, to remain available until September 30, 2024, for use for capital advances under section 202(c)(1) of such Act and for project rental assistance under section 202(c)(2) of such Act in connection with such advances, including amendments to contracts for such assistance, but not including renewal of expiring contracts for such assistance: Provided, That such additional amount shall be subject to the provisions under this heading in title II of this Act, except as modified by this heading in this title: Provided further, That not less than 10 percent of the amounts made available under this heading in this title shall be used for activities that improve water and energy efficiency, or reduce the risk of harm to occupants or property from natural hazards: Provided further, That of the amounts made available under this heading in this title, up to 0.5 percent may be transferred to Department of Housing and Urban Development, Program Offices—Office of Housing for necessary costs of administering and overseeing the obligation and expenditure of amounts under this heading in this title, to remain available until September 30, 2028: Provided further, That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. Housing for