California Code, Revenue and Taxation Code - RTC § 7470

Every person before becoming a pipeline operator or a vessel operator shall apply to the board for a license on forms prescribed by the board.In addition, every train operator that transports motor vehicle fuel, alcohol, or aircraft jet fuel into, out of, or within this state shall obtain a license from the board on forms prescribed by the board. A pipeline operator license, a train operator license, or a vessel operator license shall be issued only to a person who is a pipeline operator, a train operator, or a vessel operator as defined in Sections 7331, 7342, and 7344. It is unlawful for a person to act as a pipeline operator or a vessel operator without first securing a license.It is unlawful for a train operator to transport motor vehicle fuel, alcohol, or aircraft jet fuel into, out of, or within this state on or after January 1, 2009, without first securing a license under this section or Section 7403.1.