Cal. Pub. Util. Code § 2111

Every corporation or person, other than a public utility and its officers, agents, or employees, which or who knowingly violates or fails to comply with, or procures, aids or abets any violation of any provision of the Constitution of this state relating to public utilities or of this part, or fails to comply with any part of any order, decision, rule, direction, demand, or requirement of the commission, or who procures, aids, or abets any public utility in such violation or noncompliance, in a case in which a penalty has not otherwise been provided for such corporation or person, is subject to a penalty of not less than five hundred dollars ($500), nor more than twenty thousand dollars ($20,000) for each offense.