; and (2) the loss or damage was caused by an individual illegally crossing the U.S.-Mexico border. (b) Application To be eligible for a grant under this section, an impacted party shall submit to the Administrator an application that includes documentation of the loss or damage and an estimate of the value of such loss or an estimate of the cost to repair such damage. 5. Grants to at-risk parties (a) In general The Administrator may provide grants under this Act to an at-risk party to improve the physical security of property located within the border zone if such party certifies, to the satisfaction of the Administrator, that the party reasonably believes that the property of such party is at risk of loss or damage caused by an individual illegally crossing the U.S.-Mexico border. (b) Report on use of funds Not later than 290 days after an at-risk party receives funds under this section, such party shall submit to the Administrator documentation on how the party spends such funds. Any funds that remain unspent on the day on which such documentation is submitted shall be returned to the Administrator for further provision under this section. 6. Funding (a) Transfer of funds Of the funds appropriated under the heading Procurement, Construction, and Improvement for use by the U.S. Customs and Border Patrol that are unobligated and unexpended as of the date of enactment of this Act, $75,000,000 shall be transferred to the Administrator to provide grants under this Act. (b) Fiscal year limitation Of the funds transferred under subsection (a), the Administrator may expend $25,000,000 for each of fiscal years 2022 through 2024. (c) Limitation on grant amount An individual may not receive more than a total of $25,000 under this section for fiscal years 2022 through 2024. 7. Regulations The Administrator may issues such regulations as are necessary to carry out this Act, including— (1) requirements that applicants for funds under this Act submit evidentiary documentation, including property deeds, police reports,