Ford said it is officially enrolled in the California Autonomous Vehicle Tester Program.
The Korean automaker said it "plans to evaluate partially and fully autonomous driving technologies in Nevada, monitoring the car's performance in real-world conditions, an important part of its roadmap for autonomous driving."
Hyundai's sister company Kia also has been granted a license by Nevada to carry out testing of its self-driving technologies in the state.
The Kia Soul EV's advanced driver assistance systems will be tested in Beatty, Nevada, as the automaker aims to bring its first fully autonomous vehicle to market by 2030.
Kia also intends to introduce partially autonomous driving technologies to its vehicles by 2020.
In the meantime, the California Department of Motor Vehicles is proposing greater restrictions on the testing of self-driving cars.
Edmunds says: Driverless cars continue to roll out on American roads, even as the debate continues about their safety.