14 CFR 183.65: Continuing requirements: Operational approvals.

For any operational authorization, airman certificate, air carrier certificate, air operator certificate, or air agency certificate issued under the authority of this subpart, an ODA Holder must:

(a) Notify the Administrator of any error that the ODA Holder finds it made in issuing an authorization or certificate;

(b) Notify the Administrator of any authorization or certificate that the ODA Holder finds it issued to an applicant not meeting the applicable requirements;

(c) When required by the Administrator, investigate any problem concerning the issuance of an authorization or certificate; and

(d) When notified by the Administrator, suspend issuance of similar authorizations or certificates until the ODA Holder implements all corrective action required by the Administrator.