Section 4003.5 Of Article 1. Vehicles Subject To Registration From California Vehicle Code >> Division 3. >> Chapter 1. >> Article 1.

. (a) Upon payment of the fee specified in Section 9258.5, the department shall issue to a manufacturer or dealer a one-trip permit authorizing a new trailer, semitrailer, or auxiliary dolly that has never been registered in any state, or a used trailer, semitrailer, or auxiliary dolly that is not currently registered, to be moved or operated laden within, entering, or leaving this state for not more than 10 days as part of one continuous trip from the place of manufacture for a new vehicle, or from the place of dispatch or entry into this state for a used vehicle, to a place where the vehicle will be offered for sale.
  (b) Any permit issued pursuant to this section authorizes the operation of a single trailer, semitrailer, or auxiliary dolly, and the permit shall identify the trailer, semitrailer, or auxiliary dolly authorized by make, model, and vehicle identification number. The permit shall include the name and license number of the manufacturer from whom the new vehicle is sent, or the name and license number of the dealer from whom the used vehicle is sent, the name and address of the person or business receiving the load, a description of the load being carried, and the name and license number of the dealer who will be offering the trailer, semitrailer, or auxiliary dolly for sale. Each permit shall be completed prior to operation of the trailer or semitrailer or auxiliary dolly on a highway. The permit shall be carried on the trailer, semitrailer, or auxiliary dolly to which it applies in an appropriate receptacle inaccessible from the inside of the cab and shall be readily available for inspection by a peace officer. Each permit is valid at the time of inspection by a peace officer only if it has been completed as required by the department and has been placed in the appropriate receptacle as required by this section. The manufacturer or dealer issued the permit may allow a third party to move or operate the vehicle.
  (c) The privilege of securing and displaying a permit authorized pursuant to this section shall not be extended to a manufacturer, carrier, or dealer located in a jurisdiction with which the state does not have vehicle licensing reciprocity.
  (d) The privilege of securing and displaying a permit authorized pursuant to this section shall not be granted more than once without the sale and registration of the trailer, semitrailer, or auxiliary dolly.