There is a gold rush among states to pass the friendliest self driving car regulations. Nevada was one of the first states to pass testing of self-driving cars. After that, three more big states of California, Florida & Michigan passed regulations. Nevada law defines an "autonomous vehicle" and permits the use of vehicles for testing and directs state DMV to adopt rules for license endorsement and for operation, including insurance, safety standards, and testing. The law requires a person behind the wheel and one in the passenger’s seat during tests.

License plates issued for driverless cars will have a red background and feature an infinity symbol on the left side. Nevada DMV Director Bruce Breslow said “I feel using the infinity symbol was the best way to represent the 'car of the future,'” . The system allows a human driver to take control by stepping on the brake or turning the wheel.

However, an investigation in Oct 2014 by IEEE revealed that a driverless car license given for one car is being used for a completely different car. From the IEEE article:

“Nevada officials gave a Google robotic 2008 Prius a driving test in 2012 for a license to operate the vehicle on the state’s roads. However, the resulting license was first applied to three 2009 Prius cars. When Google renewed the license, it did so not for those three cars but for a trio of robotic Lexus SUVs. None of the licensed cars were tested by Nevada officials…. “It shows the disconnect between Google’s thinking about driverless cars and everyone else’s,” says Ryan Calo, a law professor at the University of Washington who specializes in robotics and public policy. “Google’s engineers are thinking, ‘When we model the world, how well does our vehicle respond? The physical shell that [the system] lives in is less important. What ultimately matters is the quality of that software.’ ”