Section 24003 Of Chapter 1. General Provisions From California Vehicle Code >> Division 12. >> Chapter 1.
24003
. No vehicle shall be equipped with any lamp or illuminating
device not required or permitted in this code, nor shall any lamp or
illuminating device be mounted inside a vehicle unless specifically
permitted by this code. This section does not apply to:
(a) Interior lamps such as door, brake and instrument lamps, and
map, dash, and dome lamps designed and used for the purpose of
illuminating the interior of the vehicle.
(b) Lamps needed in the operation or utilization of those vehicles
mentioned in Section 25801, or vehicles used by public utilities in
the repair or maintenance of their service, or used only for the
illumination of cargo space of a vehicle while loading or unloading.
(c) Warning lamps mounted inside an authorized emergency vehicle
and meeting requirements established by the department.