California Code, Vehicle Code - VEH § 21658.1

(a) For the purposes of this section, “lane splitting” means driving a motorcycle, as defined in Section 400, that has two wheels in contact with the ground, between rows of stopped or moving vehicles in the same lane, including on both divided and undivided streets, roads, or highways.

(b) The Department of the California Highway Patrol may develop educational guidelines relating to lane splitting in a manner that would ensure the safety of the motorcyclist and the drivers and passengers of the surrounding vehicles.

(c) In developing guidelines pursuant to this section, the department shall consult with agencies and organizations with an interest in road safety and motorcyclist behavior, including, but not limited to, all of the following: