INS stands for Immigration and Naturalization Service. When the agency was dissolved in 2003, its immigration responsibilities were divided among other governmental agencies.
USCIS -- United States Citizenship and Immigration Services
In 2003, all immigration services were transferred to the newly formed Bureau of Citizenship and Immigration Services. In October 2004, the agency changed its name to United States Citizenship and Immigration Services, commonly referred to by the acronym USCIS.
ICE -- United States Immigration and Customs Enforcement
Enforcement and investigations related to immigration matters are handled by the United States Immigration and Customs Enforcement agency, commonly referred to by the acronym ICE.
CBP -- United States Customs and Border Protection
Security along the United States border, including border patrolling and regulation of international trade, is handled by the United States Customs and Border Protection agency, commonly referred to by the acronym CBP.
INS was originally formed in 1933 with the merging of the Bureau of Immigration and the Bureau of Naturalization.
Branches of Government
In 1933, INS was established under the Department of Labor. In 1940, INS was transferred to the Department of Justice. The current immigration agencies that replaced INS are under the Department of Homeland Security.
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