CFR > Title 22 - Foreign Relations > CHAPTER I—DEPARTMENT OF STATE > SUBCHAPTER F—NATIONALITY AND PASSPORTS (parts 50 to 53) > PART 51—PASSPORTS > SUBPART C—Evidence of U.S. Citizenship or Nationality (§51.40 to §51.46) > 51.45—Department discretion to require evidence of U.S. citizenship or non-citizen nationality.

51.45—Department discretion to require evidence of U.S. citizenship or non-citizen nationality.

The Department may require an applicant to provide any evidence that it deems necessary to establish that he or she is a U.S. citizen or non-citizen national, including evidence in addition to the evidence specified in 22 CFR 51.42 through 51.44.