; overseas vetted units; and maintenance, minor construction, and minor leasehold improvements at owned and leased facilities; $7,139,842,000; of which $6,000,000 shall remain available until expended to enforce laws against forced child labor; of which $13,700,000 shall remain available until September 30, 2020; of which not less than $15,000,000 shall be available for investigation of intellectual property rights violations, including operation of the National Intellectual Property Rights Coordination Center; of which not less than $9,000,000 shall be available for facilities repair and maintenance projects; of which not less than $84,000,000 shall be available for vehicle fleet recapitalization; and of which not less than $3,837,241,000 shall be for enforcement, detention, and removal operations, including transportation of unaccompanied minor aliens: Provided , That not to exceed $11,475 shall be for official reception and representation expenses: Provided further , That not to exceed $10,000,000 shall be available until expended for conducting special operations under section 3131 of the Customs Enforcement Act of 1986 ( 19 U.S.C. 2081 ): Provided further , That not to exceed $2,000,000 shall be for awards of compensation to informants, to be accounted for solely under the certificate of the Secretary of Homeland Security: Provided further , That not to exceed $11,216,000 shall be available to fund or reimburse other Federal agencies for the costs associated with the care, maintenance, and repatriation of smuggled aliens unlawfully present in the United States. Procurement, construction, and improvements For necessary expenses of U.S. Immigration and Customs Enforcement for procurement, construction, and improvements, $70,431,000, to remain available until September 30, 2021