We may accept the following as evidence of U.S. citizenship :    Certificate of Citizenship N-560/N-561 ;    Certificate of Naturalization N-550/N-570 ;      Machine Readable Immigrant Visa MRIV showing a category code of IR3 or IH3 ; [26] or   U.S. passport .
you must get present the birthcertificate within 10 days or get one
if not then what?
we will consider other documents such as your child 's passport or a document issued by the Department of Homeland Security DHS as evidence of your child 's age