California Opens Highways to Self-Driving Trucks

California's highways are about to become a testing ground for self-driving trucks. The state's Department of Motor Vehicles has granted permits to Aurora Innovation and Kodiak AI, two companies that develop autonomous trucking technology, to test their vehicles on public roads. Kodiak has already begun, starting with a small fleet of test trucks operating around its Mountain View office.

Lifting the Heavy-Truck Ban

The permits follow a significant regulatory shift. The California DMV, which oversees autonomous vehicle regulation in the state, approved new rules on April 28 that lifted a previous ban on testing driverless vehicles weighing more than 10,000 pounds on public roads. This change provides a formal path for companies to test and eventually deploy heavy-duty autonomous trucks.

Both companies applied for permits this spring under the updated rules. The DMV said Kodiak and Aurora met its permitting criteria, which include safety, insurance, vehicle registration, and safety driver qualifications. The permits require a human safety operator to be present in the vehicle, and they prohibit testing on roads with posted speed limits of 25 mph or less, except when the truck is on a direct route between destinations.

Teamsters Sue Over Economic Impact

The decision has faced pushback. Last week, Teamsters California filed a lawsuit against the state's DMV in the Superior Court of Alameda County, alleging that the agency bypassed legal requirements to study and publicly disclose the potential economic impacts of allowing self-driving trucks on public roads. The lawsuit also accuses the DMV of failing to consider safety risks to motorists.

The union's opposition reflects broader concerns about the effect of autonomous trucking on employment and road safety, even as the technology moves forward.

A Homecoming for California Companies

For Aurora and Kodiak, the new permits allow them to operate in their home state. Both companies are headquartered in California but had focused their testing and deployment in Texas because of their home state's prior ban on heavy-duty autonomous vehicles.

Aurora launched a commercial self-driving truck service in Texas in May 2025, initially running a route between Dallas and Houston. It has since expanded to additional routes, including between Fort Worth and El Paso, El Paso and Phoenix, Fort Worth and Phoenix, and Laredo and Dallas. Kodiak began commercial driverless truck operations in an off-road environment in West Texas's remote Permian Basin in January 2025, later expanding to highway operations, including a route between Dallas and Houston.

Testing Under New Rules

The testing permits come with specific conditions. Besides the presence of a safety driver, companies are restricted from operating on low-speed roads unless necessary for a direct route, a measure designed to keep tests focused on highways. The DMV's requirements also cover insurance and vehicle registration, ensuring that companies are accountable.

The move is a step toward broader deployment of autonomous heavy-duty trucks, which have been in commercial use in Texas for over a year. California's decision brings the technology to the state's extensive highway network, which is far larger than what the companies have encountered in Texas.

Industry and Legal Implications

The lawsuit from Teamsters California could delay or alter the DMV's approach, though the permits have already been granted. For now, the testing is set to proceed, marking a notable shift for a state that had been a holdout on autonomous trucking.

The outcome carries weight for the trucking industry, which is watching how California's regulatory environment evolves. The state's size and economic importance mean its decisions on autonomous vehicles could have ripple effects beyond its borders.

What It Means for the Future of Trucking

These developments could reshape freight transportation in California and elsewhere. If testing succeeds and deployment follows, autonomous trucks could become a fixture on American highways, potentially altering logistics and employment in the sector. The Teamsters' lawsuit ensures that the debate over autonomous trucking's impact will remain in the public eye as the technology is put to the test.