Answer ID 143   |    Published 02/15/2006 11:49 AM   |    Updated 01/12/2012 04:46 PM

The U.S. Citizenship and Immigration Service (USCIS), in the U.S. Department of Homeland Security, handles immigration questions, which include issues of permament residency, green cards, and gaining U.S. Citizenship.  USCIS provides a toll-free telephone number for immigration and naturalization questions: 1-800-375-5283 or visit their website at http://uscis.gov.

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