2003: The Homeland Security Act divided the Immigration and Naturalization Service, or INS, into three separate entities

U.S. Citizenship and Immigration Services, or USCIS; U.S. Immigration and Customs Enforcement, or ICE; and U.S. Customs and Border Protection, or CBP — and placed them under the jurisdiction of the newly created Department of Homeland Security, or DHS. Prior to this, INS had been under the Department of Labor.