If any person fails to pay an assessment of a civil penalty after it has become a final and unappealable order, the Attorney General or the district attorney shall recover the amount for which the person is liable in the superior court. In this action, the validity and appropriateness of the final order imposing the civil penalty shall not be subject to review.
Source:
Section 116740, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=116740..