Yeah... that is the official law... but I know that some of them definitely push the 30 mph rule.. like Tomos.
Lets face it... this is not a billion dollar tax issue .. or terrorism... I think several manufacturers stretch it... and the DOT has bigger fish to fry.
The bad news is if the guy has a state who is picky... and the local cops like to pick on trivial things.
The worst I have seen here... was the Canadian from New Brunswick (or something)... who didn't have all the registering and insurance... and they ticketed him for $1200 (Canadian)... but that is still $800 US... ridiculous IMO.
To me the lowest form of motorized transportation should be exempt from all the rest of the BS required for cars.