This map reveals where driverless cars are street-legal, and which states are stuck in legislative limbo.

In 2011, Nevada became the first state to legalize the testing of driverless cars. California later followed suit. As Mojo Motors’ map details, progress in this space continues: recently California announced plans to begin issuing licenses for autonomous cars this September.

Google’s recently released prototype — a car which forgoes a steering wheel, mirrors, and pedals — reignited excitement over driverless cars, although the company’s work in the space is far from new.

Google’s driverless cars have also faced criticism. The taxi and limousine industry does not appear happy with Uber’s interest in adopting driverless vehicles, and numerous competing firms, like Mobileye, believe they can do a better job.

For more on the state of driverless cars, head here.