for amendments to section 8 project-based subsidy contracts (including section 8 moderate rehabilitation contracts), for contracts entered into pursuant to section 441 of the McKinney-Vento Homeless Assistance Act ( 42 U.S.C. 11401 ), for renewal of section 8 contracts for units in projects that are subject to approved plans of action under the Emergency Low Income Housing Preservation Act of 1987 or the Low-Income Housing Preservation and Resident Homeownership Act of 1990, and for administrative and other expenses associated with project-based activities and assistance funded under this heading: Provided further , That of the total amounts made available under this heading, not to exceed $350,000,000 shall be for performance-based contract administrators or contractors for section 8 project-based assistance, as such term is defined in subsection (f) of such section: Provided further , That the Secretary may also use such amounts provided in the preceding proviso for performance-based contract administrators or contractors for the administration of: (1) interest reduction payments pursuant to section 236(a) of the National Housing Act ( 12 U.S.C. 1715z–1(a) )