; purchase or lease of not to exceed 25 passenger motor vehicles, which shall be for replacement only; purchase or lease of small boats for contingent and emergent requirements (at a unit cost of not more than $700,000) and repairs and service-life replacements, not to exceed a total of $31,000,000; purchase, lease, or improvements of boats necessary for overseas deployments and activities; payments pursuant to section 156 of Public Law 97–377 ( 42 U.S.C. 402 note; 96 Stat. 1920); and recreation and welfare; $10,054,771,000, of which $530,000,000 shall be for defense-related activities; of which $24,500,000 shall be derived from the Oil Spill Liability Trust Fund to carry out the purposes of section 1012(a)(5) of the Oil Pollution Act of 1990 ( 33 U.S.C. 2712(a)(5) ); of which $20,000,000 shall remain available until September 30, 2026; of which $24,717,000 shall remain available until September 30, 2028, for environmental compliance and restoration; and of which $100,000,000 shall remain available until September 30, 2025, which shall only be available for vessel depot level maintenance: Provided, That not to exceed $23,000 shall be for official reception and representation expenses. PROCUREMENT, CONSTRUCTION, AND IMPROVEMENTS For necessary expenses of the Coast Guard for procurement, construction, and improvements, including aids to navigation, shore facilities (including facilities at Department of Defense installations used by the Coast Guard), and vessels and aircraft, including equipment related thereto, $1,413,950,000, to remain available until September 30, 2028; of which $20,000,000 shall be derived from the Oil Spill Liability Trust Fund to carry out the purposes of section 1012(a)(5) of the Oil Pollution Act of 1990 ( 33 U.S.C. 2712(a)(5) ). RESEARCH AND DEVELOPMENT For necessary expenses of the Coast Guard for research and development; and for maintenance, rehabilitation, lease, and operation of facilities and equipment