Every vehicle will need a human operator from the company performing the tests and reporting any accidents. Every hopeful firm will also have to register with DriveOhio, a central hub for mobility initiatives (conveniently established by Kasich in January) that will collect information on both the cars and their testing locations.

The order simultaneously creates a voluntary Autonomous Vehicle Pilot Program that helps local governments work with car and tech companies. Naturally, cities can partner with DriveOhio to create an "inventory" of test areas.

Ohio's move comes while the memory of Uber's fatal Arizona crash is still fresh, and it's bound to raise questions about the timing as a result. Ohio is no stranger to limited self-driving tests, though, so this expansion was more a matter of "when" than "if." The main challenge is attracting customers. Other states can point to local companies (such as Tesla or Ford) or ideal weather (like Arizona). Ohio may face a tougher battle convincing these firms to pay a visit.