They’re the same thing: NHTSA certified the safety features provided by the radar. The vision system isn’t certified because it wasn’t reviewed, and it hasn’t b

They’re the same thing: NHTSA certified the safety features provided by the radar. The vision system isn’t certified because it wasn’t reviewed, and it hasn’t been reviewed in part because Tesla hasn’t finished developing feature parity. So until they finish developing and releasing the features, they aren’t available. Once that’s happened, NHTSA can review them for certification.