Subpart D - Use of Lighted Lamps and Reflectors

The Subpart D provision of CFR Title 49 sets requirements for the installation, maintenance and performance of lighted lamps and reflective devices on vehicles, trailers and equipment used in transportation. It prescribes specifications for color, intensity, placement and durability to ensure visibility and safety under various operating conditions, and outlines compliance testing and record-keeping obligations for manufacturers and operators.