Cal. Vehicle Code - VEH § 31560. Section 31560.
(a)
A person operating a vehicle, or combination of vehicles, in the transportation of 10 or more used tires or waste tires, or a combination of used tires and waste tires totaling 10 or more, as defined in Section 42950 of the Public Resources Code, shall be registered with the California Integrated Waste Management Board, unless specifically exempted, as provided in Chapter 19 (commencing with Section 42950) of Part 3 of Division 30 of the Public Resources Code and in regulations adopted by the board to implement that chapter.
(b)
It is unlawful and constitutes an infraction for a person engaged in the transportation of 10 or more used tires or waste tires, or a combination of used tires and waste tires totaling 10 or more, to violate a provision of this article or Section 42951 of the Public Resources Code.