; civil citizen suits (1) Investigation of Violations by Secretary; Assistance by Other Federal Agencies; Issuance of Search Warrant; Forfeiture; Costs Recoverable in Forfeiture or Civil Action The Secretary, or any other person authorized by the Secretary, ; and (2) by adding at the end the following: (2) Civil citizen suits (A) In general Any person may commence a civil suit in Federal district court on their own behalf to enjoin any person who is alleged to be in violation of any provision of this section. (B) Amount of fine For any person found to have violated a provision of this section in any suit brought pursuant to subparagraph (A), the court may issue a fine in an amount not greater than $5,000 for each violation. (C) Limitation No action may be commenced under subparagraph (A)— (i) prior to 60 days after written notice of the violation has been given to the Secretary, and to any alleged violator of any such provision; (ii) if the Secretary has commenced an action to impose a penalty pursuant to paragraph (1)