"Motor vehicle" means any self-propelled vehicle not operated exclusively upon railroad tracks and any vehicle propelled or drawn by a self-propelled vehicle and includes vehicles known as trackless trolleys which are propelled by electric power obtained from overhead trolley wires but not operated upon rails, except snowmobiles.
Minn. R. agency 167, ch. 7030, MOTOR VEHICLE NOISE LIMITS, pt. 7030.1000
Statutory Authority: MS s 116.07