Application for Acquisition of Citizenship Through a Grandparent
(Separate Website)
If you are applying for a Certificate of Citizenship for a biological or adopted child who currently lives outside the United States, you may also need to file Form N-600/N-643, Supplement A, Application for Acquisition of Citizenship Through a Grandparent, with the Form N-600 or Form N-643.
By: U.S. Department of Justice / Immigration & Naturalization Service
Application for Certificate of Citizenship (Form N-600)
(Separate Website)
If you are want a Certificate of Citizenship for a biological child, you file Form N-600, Application for Certificate of Citizenship
By: U.S. Department of Justice / Immigration & Naturalization Service
Application for Certificate of Citizenship in Behalf of an Adopted Child (Form N-643)
(Separate Website)
If you want a Certificate of Citizenship for an adopted child, you file Form N-643, Application for Certificate of Citizenship in Behalf of an Adopted Child
By: U.S. Department of Justice / Immigration & Naturalization Service
Forms and Fees
(Separate Website)
The Forms and Fees page provides information on Immigration forms and how to print them.
By: U.S. Department of Justice / Immigration & Naturalization Service