What if you don’t pay?
If any person fails to pay an assessment of a civil penalty after it has become a final and unappealable order the Secretary shall refer the matter to the Attorney General of the United States.
What can they take?
Any fishing vessel (including its fishing gear, furniture, appurtenances, stores, and cargo) used in the commission of a prohibited act shall be liable in rem for any civil penalty assessed for such violation.
Civil Penalties and Permit Sanctions