Spoken by someone without knowledge of motor carrier regulation. That’s not a dig, few people are.
States are incredibly bad at regulating commercial entities. The Federal DOT contracts with a few universities (or at least they did) use evidence based sampling and enforcement, fulfilled by state authorities for trucks and buses in their scope. Only states like California, New York, Texas would have the resources to do it, and it would be really difficult to do anything effective when there’s 53 or more flavors.
Which is in practice lower than what a large operator would pay, particularly if they also write the software.
> will require a nationwide government regulatory body
It doesn’t require any such thing. That would be nice. But states are more than capable of regulating their roads.