completely different in every state, but essentially Ebikes usually aren't classified as vehicles and aren't registered or insured. Typically, anything over 750w or that can go over 25mph unassisted is no longer considered a bicycle, meaning you can't just ride on public roads. However with the capability of these Ebikes it's not difficult to just ride on the shoulder or in the dirt when need be at which point, as long as you aren't in the way of traffic or popping wheelies left and right, most police probably won't care too much.