California Code, Health and Safety Code - HSC § 25541.3

Any person or stationary source who knowingly violates any requirement of this article, including any fee or filing requirement, for which delegation of federal implementation and enforcement authority has been obtained pursuant to subsections (l) and (r) of Section 112 of the federal Clean Air Act (42 U.S.C. Sections 7412(l) and 7412(r)), or who knowingly renders inaccurate any federally required monitoring device or method, shall, upon conviction, be punished by a fine of not more than ten thousand dollars ($10,000) for each day of violation.