500
Three documents that serve as Primary Evidence of Citizenship.
What is U.S. public pre age 5 birth record showing birth in U.S., U.S. passport, Form DS-1350, Form FS-240, Form FS-545, Form I-197, Form N-550 and N-570, Form N-560 and N-561, Form I-873, Form I-872, Statement by U.S. Consular Official