The Attorney General shall be responsible for judicial enforcement of any civil penalty or assessment imposed pursuant to the provisions of this chapter.

Any penalty or assessment imposed in a determination which has become final pursuant to this chapter may be recovered in a civil action brought by the Attorney General. In any such action, no matter that was raised or that could have been raised in a hearing conducted under section 3803(f) of this title or pursuant to judicial review under section 3805 of this title may be raised as a defense, and the determination of liability and the determination of amounts of penalties and assessments shall not be subject to review.