and Nationality Act ( 8 U.S.C. 1356(m) ): Provided further, That not to exceed $5,000 shall be for official reception and representation expenses. FEDERAL ASSISTANCE For necessary expenses of U.S. Citizenship and Immigration Services for Federal assistance for the Citizenship and Integration Grant Program, $10,000,000, to remain available until September 30, 2025. Federal law enforcement training centers OPERATIONS AND SUPPORT For necessary expenses of the Federal Law Enforcement Training Centers for operations and support, including the purchase of not to exceed 117 vehicles for police-type use and hire of passenger motor vehicles, and services as authorized by section 3109 of title 5, United States Code, $357,100,000, of which $66,665,000 shall remain available until September 30, 2025: Provided, That not to exceed $7,180 shall be for official reception and representation expenses. PROCUREMENT, CONSTRUCTION, AND IMPROVEMENTS For necessary expenses of the Federal Law Enforcement Training Centers for procurement, construction, and improvements, $20,100,000, to remain available until September 30, 2028, for acquisition of necessary additional real property and facilities, construction and ongoing maintenance, facility improvements and related expenses of the Federal Law Enforcement Training Centers. Science and technology directorate OPERATIONS AND SUPPORT For necessary expenses of the Science and Technology Directorate for operations and support, including the purchase or lease of not to exceed 5 vehicles, $369,811,000, of which $206,093,000 shall remain available until September 30, 2025: Provided, That not to exceed $10,000 shall be for official reception and representation expenses. PROCUREMENT, CONSTRUCTION, AND IMPROVEMENTS For necessary expenses of the Science and Technology Directorate for procurement, construction, and improvements, $61,000,000, to remain available until September 30, 2028. RESEARCH AND DEVELOPMENT For necessary expenses of the Science and Technology Directorate for research and