2005 California Vehicle Code Sections 25950-25952 Article 15. Light Restrictions and MountingVEHICLE CODE
25950. This section applies to the color of lamps and to any reflector exhibiting or reflecting perceptible light of 0.05 candela or more per foot-candle of incident illumination. Unless provided otherwise, the color of lamps and reflectors upon a vehicle shall be as follows: (a) The emitted light from all lamps and the reflected light from all reflectors, visible from in front of a vehicle, shall be white or yellow, except as follows: (1) Rear side marker lamps required by Section 25100 may show red to the front. (2) The color of foglamps described in Section 24403 may be in the color spectrum from white to yellow. (3) An illuminating device, as permitted under Section 24255, shall emit radiation predominantly in the infrared region of the electromagnetic spectrum. Any incidental visible light projecting to the front of the vehicle shall be predominantly yellow to white. Any incidental visible light projecting to the rear of the vehicle shall be predominantly red. Any incidental visible light from an illuminating device, as permitted under Section 24255, shall not resemble any other required or permitted lighting device or official traffic control device. (b) The emitted light from all lamps and the reflected light from all reflectors, visible from the rear of a vehicle, shall be red except as follows: (1) Stoplamps on vehicles manufactured before January 1, 1979, may show yellow to the rear. (2) Turn signal lamps may show yellow to the rear. (3) Front side marker lamps required by Section 25100 may show yellow to the rear. (4) Backup lamps shall show white to the rear. (5) The rearward facing portion of a front-mounted double-faced turn signal lamp may show amber to the rear while the headlamps or parking lamps are lighted, if the intensity of the light emitted is not greater than the parking lamps and the turn signal function is not impaired. (6) A reflector meeting the requirements of, and installed in accordance with, Section 24611 shall be red or white, or both. (c) All lamps and reflectors visible from the front, sides, or rear of a vehicle, except headlamps, may have any unlighted color, provided the emitted light from all lamps or reflected light from all reflectors complies with the required color. Except for backup lamps, the entire effective projected luminous area of lamps visible from the rear or mounted on the sides near the rear of a vehicle shall be covered by an inner lens of the required color when the unlighted color differs from the required emitted light color. Taillamps, stoplamps, and turn signal lamps that are visible to the rear may be white when unlighted on vehicles manufactured before January 1, 1974. 25951. Any lighted lamp or device upon a motor vehicle other than headlamps, spotlamps, signal lamps, or auxiliary driving lamps, warning lamps which projects a beam of light of an intensity greater than 300 candlepower shall be so directed that no part of the beam will strike the level of the roadway at a distance of more than 75 feet from the vehicle. 25952. (a) Lamps, reflectors, and area reflectorizing material of a type required or permitted on a vehicle may be mounted on a load carried by the vehicle in lieu of, or in addition to, such equipment on the vehicle. Such equipment shall be mounted on the load in a manner that would comply with the requirements of this code and regulations adopted pursuant to this code if the load were an integral part of the vehicle. (b) Lamps on vehicles carried as a load shall not be lighted unless such lamps are mounted in accordance with subdivision (a).
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