https://www.cnbc.com/2018/03/27/uber-arizona-governor-suspends-ability-to-test-self-driving-cars.html

The governor of Arizona on Monday suspended Uber's ability to test self-driving cars on public roads in the state following a fatal crash last week that killed a 49-year-old pedestrian. The decision to block Uber Technologies Inc's is a blow to the ride-hailing company, which sees its future success reliant on driverless vehicles, and trails competitors such as Alphabet Inc's Waymo in developing the technology.

Arizona had been a key hub for Uber, with about half of the company's 200 self-driving cars and a staff of hundreds.