; (3) in paragraph (4), by inserting and aliens with an unknown status after undocumented criminal aliens each place that term appears; (4) in paragraph (5)(C), by striking to carry out this subsection and all that follows and inserting $950,000,000 for each of the fiscal years 2018 through 2021 to carry out this subsection. ; and (5) by adding at the end the following: (7) Distribution of reimbursement Any funds provided to a State or a political subdivision of a State as compensation under paragraph (1)(A) for a fiscal year shall be distributed to such State or political subdivision not later than 120 days after the last day of the period specified by the Attorney General for the submission of requests under that paragraph for that fiscal year. . 152. Operation Stonegarden (a) In general Subtitle A of title XX of the Homeland Security Act of 2002 ( 6 U.S.C. 601 et seq.) is amended by adding at the end the following new section: 2009. Operation Stonegarden (a) Establishment There is established in the Department a program, which shall be known as Operation Stonegarden , under which the Secretary, acting through the Administrator, shall make grants to eligible law enforcement agencies, through the State administrative agency, to enhance border security in accordance with this section. (b) Eligible recipients To be eligible to receive a grant under this section, a law enforcement agency— (1) shall be located in— (A) a State bordering Canada or Mexico; or (B) a State or territory with a maritime border; and (2) shall be involved in an active, ongoing, U.S. Customs and Border Protection operation coordinated through a sector office. (c) Permitted uses The recipient of a grant under this section may use such grant for— (1) equipment, including maintenance and sustainment costs; (2) personnel, including overtime and backfill, in support of enhanced border law enforcement activities