U.S. Citizenship and Immigration Services (USCIS) refenrs to on March 1, 2003, service and benefit functions of the U.S. Immigration and Naturalization Service (INS) transitioned into the Department of Homeland Security (DHS) as the U.S. Citizenship and Immigration Services (USCIS). The USCIS is responsible for the administration of immigration and naturalization adjudication functions and establishing immigration services policies and priorities.
Definition