USCIS website
INS enforcement and service functions and responsibilities transitioned into the Department of Homeland Security (DHS). The Bureau of Citizenship and Immigration Services (BCIS) are now called the U.S. Citizenship and Immigration Services (USCIS) within the Department of Homeland Security (DHS). U.S. Citizenship and Immigration Services (USCIS) homepage: http://www.uscis.gov/portal/site/uscis A great place to start additional research! […]