Medium-speed vehicle
Medium-speed vehicle (MSV) is a vehicle registration category in some states of the United States where applicable vehicles are allowed to travel on roads at speeds up to . The safety regulations for MSVs are more stringent than those for Low-speed vehicles. Montana's SB0185 was the first law to define this class of vehicle. Minnesota has laws that allow for vehicles that travel up to , Tennessee's laws allow for vehicles that travel up to , and Colorado, Kentucky, Montana, Oklahoma, Oregon, Texas and Washington all have laws allowing MSVs that travel up to . Maryland's law considers the speed capability of the particular vehicle. See also
Neighborhood Electric Vehicle
Side-by-side (vehicle)

References 

Vehicle law
Medium-speed vehicles