California Code, Health and Safety Code - HSC § 39674

(b)(1) Any person who violates any rule or regulation, emission limitation, permit condition, order fee requirement, filing requirement, duty to allow or carry out inspection or monitoring activities, or duty to allow entry for which delegation or approval of implementation and enforcement authority has been obtained pursuant to subdivision (l) of Section 112 of the Clean Air Act (42 U.S.C. Section 7412(l)) or the regulations adopted pursuant thereto, adopted pursuant to Section 39659 or Article 4 (commencing with Section 39665) or which is implemented and enforced as authorized by subdivision (b) of Section 39658 is strictly liable for a civil penalty not to exceed ten thousand dollars ($10,000) for each day in which the violation occurs.

(2) Where a civil penalty in excess of one thousand dollars ($1,000) for each day of violation is sought, there is no liability under paragraph (1) if the person accused of the violation alleges by affirmative defense and establishes that the violation is caused by an act which was not the result of intentional or negligent conduct. In a district in which a Title V permit program has been fully approved, this paragraph shall not apply to a violation of federally enforceable requirements that occur at a Title V source.

(3) Paragraph (2) shall not apply to a violation of a toxic air contaminant rule, regulation, permit, order, fee requirement, filing requirement, duty to allow or carry out inspection or monitoring activities, or duty to allow entry for which delegation or approval of implementation and enforcement authority has been obtained pursuant to subdivision (l) of Section 112 of the Clean Air Act (42 U.S.C. Sec. 7412(l)), or the regulations adopted pursuant thereto.