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U.S. safety regulators are proposing cyan lights to mark self-driving cars

The optional lamps would signal to police and other drivers that an automated system is in control, under a proposed update to lighting rules

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The National Highway Traffic Safety Administration proposed optional cyan marker lamps on Friday to show when an automated driving system is operating a vehicle. The agency said the lamps would let police and other drivers know that no person is driving.

The proposal would set specifications for the lamps' color, mounting locations, activation and visibility, NHTSA said. Vehicles would be fitted with a single lamp or........

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