Riding a 49cc scooter in Virginia?

Extremely confusing laws and requirements. Seems each county/city may have a different definition in Northern Virginia. What I can tell, as long as you don't go over 35mph even if your scooter can, then you do not need M-class license, registration, or insurance. In general, I won't go on any road with a speed limit greater than 35mph anyways since most Virginia drivers watch way too much NASCAR and will, in a fit of need to speed, run your scooter off the road.