After years of debating how driverless cars should tell the world no one is at the wheel – flashing text, audio alerts, custom lights – the feds just stepped in with a single answer: cyan.

The National Highway Traffic Safety Administration released proposed changes to Federal Motor Vehicle Safety Standard (FMVSS) No. 108, specifically rewriting the rules to fit autonomous vehicles. It’s a mix of cutting red tape for human-free designs and standardizing how robotaxis communicate with the world around them – starting with a distinctive blue-green light.

NHTSA is proposing cyan-colored marker lamps “to clearly and consistently signal to law e …

Read the full story at The Verge.

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