The INS stands for the Immigration and Naturalization Service, which was an agency of the U.S. government responsible for administering federal immigration laws and regulations, including the Immigration and Nationality Act (Title 8, United States Code)). The INS was established on June 10, 1933, merging previously separate areas of administration, namely the Bureau of Immigration and the Bureau of Naturalization. Prior to 1933, there were separate offices administering immigration and naturalization matters. The INS was part of the U.S. Department of Labor from 1933 to 1940 and the U.S. Department of Justice from 1940 to 2003). The agency was responsible for inspecting foreigners arriving at an official Port of Entry (POE), detecting and deterring illegal entry between the ports, and by sea, and conducting investigations of criminal and administrative violations of the Act. The INS was replaced with Immigration and Customs Enforcement (ICE), Customs and Border Protection (CBP), and U.S. Citizenship and Immigration Services (USCIS) in 2003).