; and (2) in paragraph (2) by inserting business after fifth . 306. In making grants under the heading Firefighter Assistance Grants , the Secretary may grant waivers from the requirements in subsections (a)(1)(A), (a)(1)(B), (a)(1)(E), (c)(1), (c)(2), and (c)(4) of section 34 of the Federal Fire Prevention and Control Act of 1974 ( 15 U.S.C. 2229a ). 307. The aggregate charges assessed during fiscal year 2019, 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, 2019, and remain available until expended. 308. None of the funds in this or any other Act may be used to deny continued rental assistance under section 408 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5174 ) to an individual or household on the basis of income. 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, $109,081,000. Procurement, construction, and improvements For necessary expenses of U.S. Citizenship and Immigration Services for procurement, construction, and improvements of the E-Verify Program, $22,838,000, to remain available until September 30, 2021. Federal law enforcement training centers Operations and support For