The safety agency is examining the data Tesla relied on to declare a car with no brake pedal, steering wheel or mirrors compliant with federal standards.
Nevada set Tesla's first-year ceiling at five times the 1,000 vehicles each approved for Waymo and Uber's Aviari, though a Tesla engineer suggested reaching about half of it.
The plant would make inference chips for Tesla's robots and robotaxis and chips for SpaceX data centers, but the announcements did not say how the two companies split the cost.
The milestone came six years after Tesla's 1 millionth car, but Musk's award counts deliveries, not production, and TechCrunch reported US sales fell 13% in the second quarter.
