U.S. Citizenship and Immigration Services (USCIS) is the agency within the DEPARTMENT OF HOMELAND SECURITY (DHS) responsible for providing services to immigrants and nonimmigrant visitors, including immigration admission...
From 1933 to 2003, the Immigration and Naturalization Service (INS) was the agency of the U.S. Department of Justice responsible for enforcing immigration laws, administering immigration benefits, and, in conjunction with the Department of State, admitting and resettling refugees.
U.S. Immigration and Customs Enforcement (ICE) is the investigative arm of the Border and Transportation Security Directorate (BTS), and it operates under the jurisdiction of the DEPARTMENT OF HOMELAND SECURITY (DHS).
The Ellis Island immigration station, located in New York harbor, was the entry point for three-quarters of American immigrants between its opening in 1892 and the implementation of the restrictive Johnson-Reed Act of 1924.
The Department of Manpower and Immigration, created by the Government Organization Act of 1966, was the branch of the Canadian government responsible for administering immigration policies between 1966 and 1994.
The Coast Guard is the part of the U.S. Armed Forces responsible for enforcing maritime laws, search-and-rescue operations at sea, interdictment of drugs and illegal aliens, protection of the marine environment, and protection of maritime borders.