FinCEN.gov
Under the Bank Secrecy Act (BSA), 31 U.S.C. 5311 et seq., and its implementing regulations at 31 C.F.R. Chapter X (formerly 31 C.F.R. Part 103), FinCEN may bring an enforcement action for violations of the reporting, recordkeeping, or other requirements of the BSA. FinCEN's Office of Enforcement evaluates enforcement matters

