(a) The Department may revoke or limit a passport when

(1) The bearer of the passport may be denied a passport under 22 CFR 51.60 or 51.61 ; or 51.28 ; or any other provision contained in this part; or,

(2) The passport has been obtained illegally, fraudulently or erroneously; was created through illegality or fraud practiced upon the Department; or has been fraudulently altered or misused;

(b) The Department may revoke a passport when the Department has determined that the bearer of the passport is not a U.S. national, or the Department is on notice that the bearer's certificate of citizenship or certificate of naturalization has been canceled.