The California Department of Motor Vehicles has approved Mercedes-Benz's automated driving system on designated highways under certain conditions without the active control of a driver.
California is one of Tesla's largest markets, accounting for 16 percent of the automaker's global deliveries last year, according to Reuters calculations.
But Mercedes-Benz beat Tesla to become the first automaker to receive authorization to sell or lease cars with a Level 3 automated driving system to the public in California. Earlier this year, the German automaker also received an approval to deploy automated driving systems on Nevada's roads.