Subchapter IV. General Provisions 8 U.S. Code §1641. Definitions 8 U.S. Code §1642. Verification of eligibility for Federal public benefits 8 U.S. Code §1643. Statutory construction 8 U.S. Code §1644. Communication between State and local government agencies and Immigration and Naturalization Service 8 U.S. Code §1645. Qualifying quarters 8 U.S. Code §1646. Derivative eligibility for benefits