heading, for the purposes authorized under this heading: Provided further, That unobligated balances, including recaptures and carryover, remaining from funds transferred to or appropriated under this heading shall be available for the current purposes authorized under this heading in addition to the purposes for which such funds originally were appropriated: Provided further, That for the purposes of the preceding proviso the Secretary may waive, or specify alternative requirements for, any provision of section 202 of the Housing Act of 1959 ( 12 U.S.C. 1701q ) in order to facilitate the development of such units, except for requirements related to fair housing, nondiscrimination, labor standards, and the environment: Provided further , That of the total amount made available under this heading, up to $6,000,000 shall be used by the Secretary to support preservation transactions of housing for the elderly originally developed with a capital advance and assisted by a project rental assistance contract under the provisions of section 202(c) of the Housing Act of 1959. HOUSING FOR PERSONS WITH DISABILITIES For capital advances, including amendments to capital advance contracts, for supportive housing for persons with disabilities, as authorized by section 811 of the Cranston-Gonzalez National Affordable Housing Act ( 42 U.S.C. 8013 ), for project rental assistance for supportive housing for persons with disabilities under section 811(d)(2) of such Act, for project assistance contracts pursuant to subsection (h) of section 202 of the Housing Act of 1959, as added by section 205(a) of the Housing and Community Development Amendments of 1978 ( Public Law 95–557 : 92 Stat. 2090), including amendments to contracts for such assistance and renewal of expiring contracts for such assistance for up to a 5-year term, for project rental assistance to State housing finance agencies and other appropriate entities as authorized under section 811(b)(3) of the Cranston-Gonzalez National Affordable Housing Act, and for supportive