12 C.F.R. § 1002.16
(a) Administrative enforcement.
(b) Penalties and liabilities.
(5) If the Comptroller of the Currency, the Federal Deposit Insurance Corporation, the Board of Governors of the Federal Reserve System, or the National Credit Union Administration has reason to believe (as a result of a consumer complaint, a consumer compliance examination, or some other basis) that a violation of the Act or this part has occurred which is also a violation of the Fair Housing Act, and the matter is not referred to the Attorney General, the agency shall: