; and (2) allow an individual or family experiencing homelessness to stay at the center for not more than 90 continuous days per 180-day period. (c) Matching funding A recipient of a grant under this section shall provide matching non-Federal funds in an amount equal to 100 percent of the grant amount. (d) Authorization of appropriations There is authorized to be appropriated to carry out this section— (1) $50,000,000 for each of fiscal years 2021 through 2025; and (2) $100,000,000 for each of fiscal years 2026 through 2030. IV Housing and Homelessness Innovation 401. Housing and homelessness innovation research centers (a) Establishment The Secretary shall establish not less than 1 housing and homelessness innovation research center in each region of the Department of Housing and Urban Development. (b) Reports Each center established under subsection (a) shall, on an annual basis, submit a report to the Secretary and Congress that includes— (1) recommendations for changes to Federal policy surrounding housing and homelessness; and (2) a study of best practices to preserve low- and middle-cost housing and expand low-cost housing options in the region served by the center, including single room occupancy units, manufactured housing, shelters, housing units under 400 square feet, stacked flats, and accessory dwelling units. (c) Authorization of appropriations There is authorized to be appropriated to carry out this section $100,000,000 for each of fiscal years 2021 through 2030.