as authorized in title III of the Departments of Veterans Affairs and Housing and Urban Development, and Independent Agencies Appropriations Act, 1999 ( 42 U.S.C. 5196e ), shall not be less than 100 percent of the amounts anticipated by the Department of Homeland Security to be necessary for its Radiological Emergency Preparedness Program for the next fiscal year: Provided , That the methodology for assessment and collection of fees shall be fair and equitable and shall reflect costs of providing such services, including administrative costs of collecting such fees: Provided further , That such fees shall be deposited in a Radiological Emergency Preparedness Program account as offsetting collections and will become available for authorized purposes on October 1, 2018, and remain available until expended. IV Research, development, training, and services U.S. citizenship and immigration services Operations and support For necessary expenses of U.S. Citizenship and Immigration Services for operations and support of the E-Verify Program, $108,856,000. Procurement, construction, and improvements For necessary expenses of U.S. Citizenship and Immigration Services for procurement, construction, and improvements of the E-Verify Program, $22,657,000, to remain available until September 30, 2021. 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, $260,099,000, of which $49,409,000 shall remain available until September 30, 2019: Provided , That not to exceed $7,180 shall be for official reception and representation expenses. 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