; (E) the program for supportive housing for persons with disabilities under section 811 of the Cranston-Gonzalez National Affordable Housing Act ( 42 U.S.C. 8013 ); or (F) a housing program under section 515, 514, 521, or 542 of title V of the Housing Act of 1949 ( 42 U.S.C. 1471 et seq. ). (2) Owner The term owner means, with respect to a covered federally assisted rental dwelling unit, any private person or entity, including a cooperative, an agency of the Federal Government, or a public housing agency, having the legal right to lease or sublease dwelling units. (f) Authorization of appropriations There is authorized to be appropriated for grants under the program under this section such sums as may be necessary for assistance under this section sufficient for all covered federally assisted rental dwelling units to meet the safe residential temperature standards established pursuant to section 6(b). 305. Box fan expenses reimbursable through health saving accounts (a) In general Section 223(d)(2)(A) of the Internal Revenue Code of 1986 is amended by inserting or box fans before shall be treated as paid for medical care . (b) Effective date The amendment made by this section shall apply to amounts paid or incurred in taxable years beginning after the date of the enactment of this Act. 306. Study on air conditioning recycling and rebate program (a) In general Not later than 180 days after the date of enactment of this Act, the Secretary of Energy shall submit to Congress a report containing the results of a study on the feasibility of a nationwide air conditioner recycling and rebate program for more energy efficient home cooling systems. (b) Inclusions The report submitted under subsection (a) shall include— (1) an analysis of the ability of a program described in such subsection to reduce greenhouse gas emissions and to promote energy savings and efficiency