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U.S. Citizenship and Immigration Services (USCIS) Law & Legal Definition

The United States Citizenship and Immigration Services (USCIS) is the government agency that oversees lawful immigration to the United States of America. It is a part of the Department of Homeland Security (DHS). The USCIS establishes policies and priorities to improve immigration services and ensures that that no one who is a threat to national security admitted. USCIS is charged with processing Immigrant visa petitions, Naturalization petitions and Asylum and refugee applications as well as making adjudicative decisions.





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