§ 39-21-29 — Selling or using lamps or equipment

1. No person may have for sale, sell, or offer for sale for use upon or as a part of the
equipment of a motor vehicle, trailer, pole trailer, or semitrailer, or use upon these
vehicles any headlamp, auxiliary, or fog lamp, rear lamp, signal lamp, or required
reflector, or parts of any of the foregoing which tend to change the original design or
performance, unless of a type which has been approved by the department. The
provisions of this subsection do not apply to equipment in actual use or replacement
parts when this section is adopted.
2. No person may have for sale, sell, or offer for sale for use upon or as a part of the
equipment of a motor vehicle, trailer, pole trailer, or semitrailer any lamp or device
mentioned in this section which has been approved by the department unless the lamp
or device bears the trademark or name under which it is approved so as to be legible
when installed.
3. No person may use upon any motor vehicle, trailer, pole trailer, or semitrailer any
lamps mentioned in this section unless the lamps are mounted, adjusted, and aimed in
accordance with instructions of the department.