Chapter 5 - Cancellation of Certificate of Citizenship or Naturalization
A. Administrative Cancellation of Certificates 
USCIS is authorized to cancel any Certificate of Citizenship or Certificate of Naturalization in cases where USCIS considers that the certificate was:
Illegally or fraudulently obtained; or
Created through illegality or by fraud. 
USCIS issues the person a written notice of the intention to cancel the certificate. The notice must include the reason or reasons for the intent to cancel the certificate. The person has 60 days from the date the notice was issued to respond with reasons as to why the certificate should not be cancelled or to request a hearing.  A cancellation of certificate under this provision only cancels the certificate and does not affect the underlying citizenship status of the person, if any, in whose name the certificate was issued.
When considering whether to initiate cancellation proceedings, it is important to distinguish between Certificates of Citizenship and Certificates of Naturalization. In general, USCIS issues Certificates of Citizenship to persons who automatically acquire citizenship by operation of law. If it is determined that the person in whose name the Certificate of Citizenship was issued did not lawfully acquire citizenship, USCIS can initiate cancellation proceedings. 
However, such a person may have an additional basis upon which to claim automatic acquisition of citizenship. Accordingly, if that person’s Certificate of Citizenship is cancelled by USCIS, but the person subsequently provides evidence that he or she automatically acquired citizenship through some other basis, the cancellation of the first Certificate of Citizenship does not affect the new citizenship claim.
By contrast, a Certificate of Naturalization cannot be cancelled if issued to a person who lawfully filed an Application for Naturalization and proceeded through the entire naturalization process to the Oath of Allegiance. In such cases, the person obtained citizenship though the entire naturalization process and his or her citizenship status must first be revoked before the Certificate of Naturalization can be cancelled. However, a Certificate of Naturalization illegally or fraudulently obtained by a person who did not lawfully file an Application for Naturalization or who did not proceed through the naturalization process may be cancelled. 
If a court revokes a person’s U.S. citizenship obtained through naturalization, the court enters an order revoking the person’s naturalization and cancelling the person’s Certificate of Naturalization. In such cases, the person must surrender his or her Certificate of Naturalization. Once USCIS obtains the court’s order revoking citizenship and cancelling the certificate, USCIS updates its records, including electronic records, and notifies the Department of State of the person’s revocation of naturalization.  All cases relating to cancellation of certificates should be coordinated through the USCIS OCC office with jurisdiction.
1. [^] See Part L, Revocation of Naturalization, Chapter 3, Effects of Revocation of Naturalization [12 USCIS-PM L.3]. A Certificate of Naturalization issued to a person who lawfully filed an Application for Naturalization and proceeded through the naturalization process to the Oath of Allegiance cannot be canceled under INA 342. Officers should consult with local USCIS counsel in such cases.
INA 310(b)(4) - Naturalization authority and issuance of certificates
No appendices available at this time.
Technical Update - Moving the Adjudicator’s Field Manual Content into the USCIS Policy ManualMay 21, 2020
U.S. Citizenship and Immigration Services (USCIS) is updating and incorporating relevant Adjudicator’s Field Manual (AFM) content into the USCIS Policy Manual. As that process is ongoing, USCIS has moved any remaining AFM content to its corresponding USCIS Policy Manual Part, in PDF format, until relevant AFM content has been properly incorporated into the USCIS Policy Manual. To the extent that a provision in the USCIS Policy Manual conflicts with remaining AFM content or Policy Memoranda, the updated information in the USCIS Policy Manual prevails. To find remaining AFM content, see the crosswalk between the AFM and the Policy Manual.
Technical Update - Replacing the Term “Foreign National”October 08, 2019
This technical update replaces all instances of the term “foreign national” with “alien” throughout the Policy Manual as used to refer to a person who meets the definition provided in INA 101(a)(3) [“any person not a citizen or national of the United States”].
POLICY ALERT - Comprehensive Citizenship and Naturalization Policy GuidanceJanuary 07, 2013
USCIS is issuing updated and comprehensive citizenship and naturalization policy guidance in the new USCIS Policy Manual.