31-5-932. Approved sale of lighting devices; mounting. (a) No person shall have for sale, sell or offer for sale for use upon or as a part of the equipment of a motor vehicle, trailer, semitrailer, motorcycle, autocycle, motor-driven cycle, moped or pole trailer, or use upon the vehicle any head lamp, auxiliary or fog lamp, rear lamp, signal lamp or reflector, which reflector is required by this article, or parts of any of the foregoing which tend to change the original design or performance, unless of a type which has been submitted to the superintendent and approved by him. This section does not apply to equipment in actual use prior to January 1, 1956, or replacement parts therefor. (b) No person shall have for sale, sell or offer for sale for use upon or as a part of the equipment of a motor vehicle, trailer, semitrailer or pole trailer any lamp or device mentioned in this section which has been approved by the superintendent unless the lamp or device bears thereon the trade-mark or name under which it is approved so as to be legible when installed. (c) No person shall use upon any motor vehicle, trailer, semitrailer or pole trailer any lamps mentioned in this section unless or name under which it is approved so as to be legible when installed. (c) No person shall use upon any motor vehicle, trailer, semitrailer or pole trailer any lamps mentioned in this section unless the lamps are mounted, adjusted and aimed in accordance with instructions of the superintendent.
Wyoming Legal Code