Zoox robotaxis in San Francisco. The decision could expand robotaxi availability because Zoox vehicles lack steering wheels and pedals and require federal approval beyond Waymo’s current fleet. NHTSA is developing new autonomous-vehicle safety requirements as Zoox continues operations and testing after a recent software recall involving heavy-smoke navigation. ImageZoox robotaxis have no steering wheels or pedals. (Zoox)Waymo hasn’t required the same exemptions since its current fleet is made up of cars with steering wheels and pedals.