Zoox is now charging real riders in Las Vegas. The federal rules haven't caught up.

Zoox began charging real riders for fare-paying robotaxi service on Las Vegas streets this month, per a Q&A with Guident CEO Harald Braun in The Robot Report. The launch puts paying passengers in cars with no steering wheel. Zoox has also signed Uber to distribute its robotaxis across additional cities.

The commercial moment is arriving ahead of the rules meant to govern it. No federal AV safety standards exist yet, and the human-oversight layer is being assembled by private vendors.

That scaffolding has a working name the industry uses heavily: human-in-the-loop. In practice, when an autonomous vehicle cannot safely resolve a situation on its own, a remote human can see what the car sees, guide the vehicle, or, where allowed, take over. Guident, a Herndon, Va. company that runs six remote monitoring centers and works with six autonomous shuttle operators, sells that layer as "multi-network teleoperation as a service". Chairman and CEO Harald Braun argues the model should handle exceptions, not routine driving: "You don't want to eliminate the human from the equation. You want to use technology to make the human much more effective."

Until federal standards arrive, each operator decides how thick that safety net should be, and riders in Las Vegas are already paying to be inside the experiment.