NHTSA proposes cyan marker lights for self-driving cars

The National Highway Traffic Safety Administration on Oct. 23 proposed a federal standard requiring cyan marker lamps on vehicles operating under automated driving systems. The proposal is open for a 30-day public comment period.

• Cyan was chosen because it is unused elsewhere and backed by SAE International
• The lights would signal to motorists and police when an automated system is driving
• Mercedes-Benz used turquoise lights on EQS and S-Class cars in California and Nevada since 2023
• The public comment period runs for 30 days