; and (ii) to support an educator or other school staff member to maintain the living schoolyards of the elementary schools and secondary schools served by the eligible entity and provide professional development described in clause (i). (4) Match (A) In general An eligible entity that receives a grant under this subsection shall provide matching funds in an amount equal to 20 percent of the grant award. (B) Waiver The Secretary may waive the matching requirement under subparagraph (A) for an eligible entity that receives a grant under this subsection and serves students not less than 40 percent of whom are eligible for a free or reduced price lunch under the Richard B. Russell National School Lunch Act ( 42 U.S.C. 1751 et seq. ). Such calculation, in the case of high schools served by the eligible entity, may be completed using comparable data from the schools that feed into the high schools. (5) Authorization of appropriations There are authorized to be appropriated to carry out this section $150,000,000 for each of fiscal years 2023 through 2027. 6. Clearinghouse The Secretary shall maintain a clearinghouse of information that— (1) provides examples of outdoor learning spaces, including successful models being used; (2) includes input from nonprofit organizations, professionals, and other community members with expertise in outdoor learning spaces and environmental education; and (3) provides links and information about State and local entities with expertise in outdoor learning spaces and environmental education.