US Auto Safety Regulator Sought Tesla Robotaxi Ride Last Month

The US safety regulator investigating the suite of features Tesla Inc. markets as Full Self-Driving has sought to test the carmaker’s recently launched driverless-taxi service, a sign of the close tabs authorities are keeping on the technology.

The National Highway Traffic Safety Administration wrote to Tesla on July 1 about coordinating a visit to Austin last month for a ride. In the email from the director of the agency’s Office of Defects Investigation, which was uploaded to NHTSA’s website Thursday, regulators also sought information on size of Tesla’s robotaxi fleet, plans for a public launch and the use of remote ...