(a)
An applicant for naturalization shall be deemed a citizen of the United States as of the date on which the applicant takes the prescribed oath of allegiance, administered either by the Service or an Immigration Judge in an administrative ceremony or in a ceremony conducted by an appropriate court under § 337.8 of this chapter.
Code of Federal Regulations
[56 FR 50500, Oct. 7, 1991, as amended at 60 FR 37804, July 24, 1995; 66 FR 32147, June 13, 2001]