Ohio has opened the country’s largest test track for driverless vehicles, complete with Teslas swerving through intersections, headfirst collisions and cheering engineers.

On July 1, Florida began allowing autonomous vehicle tests without backup drivers, a move widely seen as an effort to make the state a leader in self-driving cars.

In Phoenix, the nation’s first commercial self-driving taxi service ferries passengers everywhere. Some vehicles have safety drivers; others have no drivers at all…

Industry analysts say these interstate rivalries are being fueled by a lack of Washington regulation. The Federal Automated Vehicles Policy includes no rules, but only guidance for states.

Some worry that the varied rules from state to state could hinder car manufacturers, but others, including Florida Gov. Ron DeSantis, welcome the patchwork approach.
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