(a) General rule.--No action for the recovery of any penalties or forfeitures incurred under the provisions of this part, and no prosecutions on account of any matter or thing mentioned in this part, shall be maintained unless brought within three years from the date at which the liability therefor arose, except as otherwise provided in this part.
(b) Remedies and penalties cumulative.--All suits, remedies, prosecutions, penalties, and forfeitures provided for, or accruing under, this part, shall be cumulative.