Cal. HSC § 117490

A vessel upon which any garbage has been loaded with the intent that it shall be dumped or deposited upon any of the waters of the ocean where permitted by this article, shall not leave any point within the state unless it shall carry for the entire trip an inspector appointed by the department, or where the point of departure is in a city, then by the city. The inspector shall enforce this article. Every person in charge of a vessel that is required to have an inspector on board by this article, and that does not carry an inspector during the entire trip, is guilty of a misdemeanor.