As part of the move, the National Highway Traffic Safety Administration closed a 2023 probe into Zoox's self-certification process.

NHTSA is also closing an investigation into the Amazon-owned autonomous vehicle company

As part of the move, the National Highway Traffic Safety Administration closed a 2023 probe into Zoox's self-certification process.

California-based Zoox is the first U.S. manufacturer of automated vehicles to be exempted from full compliance with Federal Motor Vehicle Safety Standards.