12 C.F.R. § 19.243
(a) Good cause for removal, suspension, or debarment—(1) Individuals. The Comptroller may remove, suspend, or debar an independent public accountant from performing audit services for insured national banks, insured Federal savings associations, or insured Federal branches of foreign banks that are subject to section 36 of the FDIA (12 U.S.C. 1831m) if, after service of a notice of intention and opportunity for hearing in the matter, the Comptroller finds that the accountant:
(iii) Has engaged in negligent conduct in the form of:
(2) Accounting firms. If the Comptroller determines that there is good cause for the removal, suspension, or debarment of a member or employee of an accounting firm under paragraph (a)(1) of this section, the Comptroller also may remove, suspend, or debar such firm or one or more offices of such firm. In considering whether to remove, suspend, or debar a firm or an office thereof, and the term of any sanction against a firm under this section, the Comptroller may consider, for example: