; and (4) setting forth a plan and mechanisms for bringing all covered federally assisted rental dwelling units into compliance with the safe residential standards. (b) Safe residential temperature standards Not later than 2 years after the date of the enactment of this Act, the Secretary of Housing and Urban Development, in consultation with the Secretary of Agriculture, shall issue regulations establishing safe residential temperature standards for covered federally assisted rental dwelling units based on the safe temperature standards identified in the report under subsection (a) pursuant to subsection (a)(2). 304. Grants for providing safe residential temperatures in all federally assisted dwellings (a) Authority The Secretary of Housing and Urban Development (in this section referred to as the Secretary ), in coordination with the Secretary of Agriculture and in consultation with the relevant White House Interagency Working Group on Extreme Heat, shall carry out a program under this section to make grants to public housing agencies and owners of covered federally assisted rental dwelling units to enable covered federally assisted rental dwelling units to comply with the safe residential temperature standards in public housing and established pursuant to section 303(b). (b) Eligible activities Amounts from a grant under this section may be used only for costs of acquiring and installing air conditioning or other means or mechanisms that meet such standards as the Secretary shall establish regarding cooling capacity, safety, reliability, and energy efficiency, for covered federally assisted rental dwelling units that were constructed before the date of the enactment of this Act, to enable such dwelling units to comply with the safe residential temperature standards established pursuant to section 303(b) in a manner provided for in the plan set forth in the report under section 6(a) pursuant to subsection 6(a)(4). (c) Applications The Secretaries referred to in subsection (a) shall provide for public housing