to non-native plant pests or noxious weeds present in the United States. (3) The non-native plant pests or noxious weeds’ rate of spread via natural or human-assisted means. (4) The environmental and public health safety of the proposed project, as demonstrated by supporting research. (e) Matching requirement An eligible institution receiving a grant under this section shall provide matching funds from non-Federal sources in an amount equal to not less than 10 percent of the grant. Indirect costs charged against a grant awarded under this section shall not exceed 30 percent of the total Federal funds provided under the grant award. (f) Authorization of appropriations (1) In general There are authorized to be appropriated to carry out this section $25,000,000 for each fiscal years 2020 through 2024. (2) Limitation Of the funds made available under paragraph (1) for a fiscal year, not more than 5 percent of such amounts may be used by the Secretary for expenses related to administering the program under this section. .