I don't have any citations beyond what is in that medium post which should be enough to indicate it is level 4. Level 3 requires a driver to be available to ta

I don't have any citations beyond what is in that medium post which should be enough to indicate it is level 4. Level 3 requires a driver to be available to take immediate control of the vehicle. The simple act of sending a car out on a road without a driver shows the car is level 4 (or the company is wildly irresponsible to try it and the state is wildly irresponsible for granting the permit, but hopefully we can rule these out).