FMCSA Exemption Clears the Way for Driverless Trucks
Federal regulators have granted Aurora Operations Inc. and other qualifying carriers a five-year exemption allowing Level 4 autonomous trucks to use cab-mounted amber warning beacons instead of traditional roadside warning devices when a vehicle is stopped or disabled.
Exemption Addresses Driverless Truck Requirements
The Federal Motor Carrier Safety Administration said the exemption is intended to address a requirement that drivers place warning triangles or other devices around a stopped commercial vehicle. Because a driverless truck has no human operator who can safely leave the cab, the exemption allows qualifying vehicles to alert approaching traffic with flashing beacons mounted high on the truck cab.
The exemption applies to Aurora and other motor carriers operating Level 4 automated driving system vehicles, provided they notify FMCSA in writing of their intent to use the exemption and certify compliance with its conditions.
Aurora Previously Operated Under Temporary Waivers
Aurora had sought permission in 2023 to use cab-mounted warning beacons in place of traditional warning devices. FMCSA later issued the company temporary waivers beginning in October 2025. Aurora reported that 34 trucks operated under the waivers and traveled more than 500,000 miles during the applicable period.
The five-year exemption replaces the series of short-term waivers previously used by Aurora and establishes a broader framework for other carriers operating qualifying autonomous trucks.
Industry Groups Raised Concerns
The exemption drew opposition from trucking organizations. The Small Business in Transportation Coalition argued that it could create different safety standards for autonomous and human-driven trucks. The Owner-Operator Independent Drivers Association urged FMCSA to wait for the agency’s own study of warning devices used around stopped commercial vehicles.
Despite those concerns and related legal challenges, FMCSA approved the exemption. The agency’s decision provides a regulatory path for autonomous trucking companies to use onboard warning systems when a disabled or stopped vehicle cannot be attended by a human driver.
