The two firms obtained a regulatory exemption allowing their self‑driving trucks to use warning lights mounted on the vehicle instead of traditional roadside safety triangles, a step that could speed up commercial rollout.

Autonomous trucking firms Aurora and Kodiak have secured a federal waiver that lets their self‑driving rigs replace the traditional roadside safety triangles with cab‑mounted warning beacons. The exemption, granted by the U.S. Department of Transportation, removes a long‑standing safety hurdle and could accelerate the commercial deployment of driverless freight vehicles across the nation.

Regulatory background

The Federal Motor Carrier Safety Administration (FMCSA) historically required any stopped vehicle on a highway to display reflective triangles placed at set distances behind the truck. Critics argued that the rule was ill‑suited for autonomous trucks, which lack a driver to set up the devices and can respond more quickly to hazards.

In a petition filed earlier this year, Aurora and Kodiak argued that high‑intensity LED beacons mounted on the truck’s roof provide an equally visible, if not superior, warning to other motorists while eliminating the need for manual triangle placement.

Details of the waiver

The waiver permits the use of flashing white or amber beacons that meet specific luminous intensity and flash‑rate standards. Trucks must still activate the beacons when coming to an unscheduled stop and keep them on for a minimum of five minutes, mirroring the visibility window of traditional triangles.

Both companies will submit periodic compliance reports to the FMCSA, documenting beacon performance and any incidents related to the new warning system.

Industry implications

Analysts say the decision could set a precedent for other autonomous vehicle developers seeking similar exemptions, potentially reshaping safety protocols for a range of automated road users.

  • Reduced downtime for autonomous trucks during emergencies
  • Lower operational costs by eliminating triangle inventory
  • Improved safety through faster hazard signaling

The waiver is limited to Aurora’s Aurora Driver and Kodiak’s Kodiak AI platforms and applies only to U.S. highways where the FMCSA has jurisdiction. State regulators may still enforce local requirements.

TechCrunch Mobility coverage of the autonomous truck waiver