12 CFR 263.403: Automatic removal, suspension, and debarment.

(a) An independent public accountant or accounting firm may not perform audit services for banking organizations if the accountant or firm:

(1) Is subject to a final order of removal, suspension, or debarment (other than a limited scope order) issued by the Federal Deposit Insurance Corporation, the Office of the Comptroller of the Currency, or the Office of Thrift Supervision under section 36 of the FDIA;

(2) Is subject to a temporary suspension or permanent revocation of registration or a temporary or permanent suspension or bar from further association with any registered public accounting firm issued by the Public Company Accounting Oversight Board or the Securities and Exchange Commission under sections 105(c)(4)(A) or (B) of the Sarbanes-Oxley Act of 2002 (15 U.S.C. 7215(c)(4)(A) or (B)); or

(3) Is subject to an order of suspension or denial of the privilege of appearing or practicing before the Securities and Exchange Commission.

(b) Upon written request, the Board, for good cause shown, may grant written permission to such accountant or firm to perform audit services for banking organizations. The request shall contain a concise statement of the action requested. The Board may require the applicant to submit additional information.