What types of documents do I need?
If you haven't already, you will need to prove your citizenship status.
I haven't, how do I do so?
As proof of U.S. citizenship only certain documents are accepted. These include:U.S. passport ;Certificate of Naturalization N-550/N-570 ;Certificate of Citizenship N-560/N-561 ;Certificate of Report of Birth DS-1350 ;Consular Report of Birth Abroad FS-240 , CRBA