122.2 Citizenship
Eligible U.S. citizens include the following:
Persons who were born in the U.S., including Puerto Rico , the Virgin Islands , Guam , the Northern Mariana Islands , Swains Island , and American Samoa
Persons who were naturalized (made U.S. citizens) by the United States Citizenship and Immigration Services (USCIS)
Persons who have citizenship through parents becoming naturalized U.S. citizens
Persons who got U.S. citizenship at birth abroad through a U.S. citizen parent or parents
Persons who got citizenship through application by U.S. citizen adoptive parent
NOTE: Immigration and Naturalization Services (INS) became USCIS on March 1, 2003.