8 CFR § 338.5 - Correction of certificates.
(a) Application. Whenever a Certificate of Naturalization has been delivered which does not conform to the facts shown on the application for naturalization, or a clerical error was made in preparing the certificate, an application for issuance of a corrected certificate may be filed, without fee, in accordance with the form instructions.
(b) Court-issued certificates. If the certificate was originally issued by a clerk of court under a prior statute and USCIS finds that a correction is justified and can be made without mutilating the certificate, USCIS will authorize the issuing court to make the necessary correction and to place a dated endorsement of the court on the reverse of the certificate explaining the correction. The authorization will be filed with the naturalization record of the court, the corrected certificate will be returned to the naturalized person, and the duplicate will be endorsed to show the date and nature of the correction and endorsement made, and then returned to USCIS. No fee will be charged the naturalized person for the correction.
(c) USCIS-issued certificates. If the certificate was originally issued by USCIS (or its predecessor agency), and USCIS finds that a correction was justified, the correction shall be made to the certificate and a dated endorsement made on the reverse of the certificate.
(d) Administrative actions. When a correction made pursuant to paragraphs (b) or (c) of this section would or does result in mutilation of a certificate, USCIS will issue a replacement Certificate of Naturalization and destroy the surrendered certificate.
(e) Data change. The correction will not be deemed to be justified where the naturalized person later alleges that the name or date of birth which the applicant stated to be his or her correct name or date of birth at the time of naturalization was not in fact his or her name or date of birth at the time of the naturalization.