; or (2) in the case only of a partnership that has previously received a grant under this section, the amount that the partnership certifies, as the Secretary shall require, that the partnership will contribute from non-Federal sources for educational and community outreach programs described in subsection (a) that are assisted with such grant amounts. 7. GAO review Not later than the expiration of the 3-year period beginning on the date of the enactment of this Act, the Comptroller General of the United States shall conduct a review of grant programs under sections 4, 5, and 6 of this Act to analyze the effectiveness of such programs and shall submit a report containing the results of such review and any conclusions resulting from such review to the Committee on Financial Services of the House of Representatives and the Committee on Banking, Housing, and Urban Affairs of the Senate. 8. Regulations The Secretary may issue any regulations necessary to carry out this Act. 9. Authorization of appropriations (a) Funding There are authorized to be appropriated to the Secretary of Housing and Urban Development to carry out this Act $100,000,000 for each of fiscal years 2019 through 2025 of which, in each fiscal year— (1) 90 percent shall be available only for grants under section 4; (2) 5 percent shall be available only for grants under section 5; and (3) 5 percent shall be available only for grants under section 6. (b) Source of funding It is the sense of the Congress that the funding to carry out this Act provided pursuant to subsection (a) should not result in a reduction of Federal funding for any existing affordable housing program or programs.