CA Pub Util Code Section 5311.3

Every household goods carrier, and every officer, director, agent, or employee of a household goods carrier, who displays on any vehicle any identifying symbol other than one prescribed by the commission pursuant to Section 5132 or who fails to remove an identifying symbol when required by the commission, is guilty of a misdemeanor and is punishable by a fine of not more than one thousand dollars ($1,000), by imprisonment in the county jail for not more than one year, or by both.