Adult Acquisition of Citizenship

This page is intended for adults (over 18 years of age) who wish to make a claim of United States citizenship. If the claim of citizenship is for a child under the age of 18, please visit our “Consular Report of Birth Abroad” page.

Persons born abroad (out of United States territory) to U.S. citizen parent/s may have acquired U.S. citizenship at birth. This determination is based upon a variety of factors: the laws in effect at the time of birth, the amount of time the U.S. citizen parent/s have lived in the U.S. prior to the birth, and, in some cases, the marital status of the biological parents.  Please review the links below and gather all required documentation.  When ready, please use our Passport Navigator to schedule a first time adult passport appointment.