NHTSA proposes optional cyan marker lights for automated vehicles
The proposal also revises lighting-control requirements for vehicles without manual driving controls; it is not a final rule.
NHTSA announced an October 23 proposal to update U.S. vehicle lighting rules, including specifications for optional cyan marker lamps that identify when an automated driving system is controlling a vehicle. The changes concern Federal Motor Vehicle Safety Standard No. 108. [1] [2]
For vehicles without manual driving controls, the proposal would narrow requirements designed around a person's operation of turn signals, hazard warnings and headlamp beam switching. Vehicles would still need a way to operate turn signals and switch headlamp beams, which could be automated. [2]
The marker lamps would remain optional. If fitted, they would have to meet specifications covering matters such as color, mounting, activation and visibility. The notice describes them as indicating automated operation without expecting an occupant to monitor the road. [2] [1]
The signed notice was submitted for Federal Register publication and specifies a 30-day comment period after publication. This is a proposed equipment-rule change, not an enacted requirement or an approval of any particular vehicle's autonomous operation. [2]