Cal. Lab. Code § 7302

The operation of a conveyance without a permit by any person owning or having the custody, management, or control of the operation of the conveyance, is a misdemeanor, punishable by a fine of not more than one thousand dollars ($1,000), imprisonment in the county jail for not more than 10 days, or by both that fine and imprisonment. Each day of operation for each conveyance without a permit is a separate offense. Any person who has requested the issuance or renewal of a permit if the request has not been acted upon by the division may not be prosecuted for a violation of this section.