22 C.F.R. § 51.54 Requirement of additional evidence of U.S. citizenship.
Title 22 - Foreign Relations
Nothing contained in §§51.43 through 51.53 shall prohibit the Department from requiring an applicant to submit other evidence deemed necessary to establish his or her U.S. citizenship or nationality. (22 U.S.C. 2658 and 3926) [31 FR 13540, Oct. 20, 1966, as amended at 49 FR 16989, Apr. 23, 1984]
Title 22: Foreign Relations
PART 51—PASSPORTS
Subpart C—Evidence of U.S. Citizenship or Nationality
Citizenship by Act of Congress or Treaty
§ 51.54 Requirement of additional evidence of U.S. citizenship.
