California just moved the biggest freight state in the US closer to driverless trucking, but it did not open the gate cheaply. Reuters reported April 28 that the California Department of Motor Vehicles adopted new rules allowing manufacturers to test and deploy heavy-duty autonomous vehicles on public roads. The headline is access. The fine print is a steep evidence bar: companies must work through safety-driver testing, then driverless testing, and for heavy-duty vehicles log 500,000 miles at each phase before they can seek commercial deployment.

The shift matters because California had effectively blocked this class of deployment for years. The new rules lift the ban on autonomous vehicles weighing more than 10,001 pounds, opening the state to autonomous freight operations. At the same time, regulators did not hand companies a blank check. Heavy-duty vehicles will still have to stop at patrol stations and comply with state and federal commercial motor vehicle rules. Medium-duty autonomous vehicles up to 14,001 pounds will also be allowed for public agencies and universities, broadening the testing surface beyond pure private-sector logistics.

The political backdrop is part of the story. Governor Gavin Newsom vetoed a 2023 bill that would have kept heavy-duty driverless trucks off California roads, and the DMV has been working since then on a regulatory framework that could survive both industry pressure and safety scrutiny. The sequence built into the rules shows that compromise. Manufacturers must begin with testing that includes a safety driver, move to fully driverless testing, and only then apply for commercial deployment. For light-duty vehicles the threshold is 50,000 miles. For heavy-duty vehicles it jumps to 500,000 miles. California is signaling that autonomy can scale, but only after a long paper trail of road evidence.

Ban lifted for autonomous vehicles above 10,001 pounds
Heavy-duty vehicles must still follow patrol-stop and commercial vehicle rules
Medium-duty vehicles up to 14,001 pounds are allowed for public agencies and universities
Heavy-duty testing requires 500,000 miles at each phase before deployment

That mix of openness and caution will matter well beyond Sacramento. Freight operators, robotruck developers, insurers, and labor groups all treat California as a reference market because of its road volume and regulatory influence. If these rules hold, the state becomes a proving ground for whether autonomous freight can clear not just a technical demo but a real public-road compliance regime. Source link: Reuters via WSAU.

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California opens driverless freight lane with a 500,000-mile proof bar