and (3) under this heading in this title may be transferred, in aggregate, to Department of Housing and Urban Development, Program Offices—Public and Indian Housing for necessary costs of administering and overseeing the obligation and expenditure of such amounts, to remain available until September 30, 2023: 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. Native hawaiian housing block grant (including transfer of funds) For an additional amount for the Native Hawaiian Housing Block Grant program, $20,000,000, to remain available until September 30, 2022: 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 up to 1 percent of the amounts made available under this heading in this title may be transferred, in aggregate, to Department of Housing and Urban Development, Program Offices—Public and Indian 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, 2023: 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. Community planning and development Community development fund (including transfer of funds) For an additional amount for Community Development Fund , $4,000,000,000, to remain available until September 30, 2022: Provided, That such additional amount shall be subject to the provisions under this