The functions of the U.S. Citizenship and Immigration Services (USCIS) were formerly handled by the Department of Labor. In 1940, these functions were transferred to the Immigration and Naturalization Service (INS) within the Department of Justice. In 2003, the INS's functions were transferred to the newly-created DHS. USCIS handles naturalization and enforces immigration laws.
Read more about the agency:
Government Documents holds a partial collection of CIS publications, including the following series:
Test preparation materials for naturalization tests (HS 8.2:) Flash cards and other study materials
Additional documents covering 1910-1932 are available in the Executive Branch Documents microfiche set. Please contact a government documents librarian if you have questions about our holdings.