Class 1 - 2-Axle Passenger Vehicles

• passenger car
• light truck
• van
• motorcycle (with or without sidecar)

Class 1 - Commercial Vehicles

• any Class 1 vehicle with commercial licenses plates, including taxis, hearses, and 2-axle limousines

Class 2 - 3 to 5 axle vehicle

• any Class 1 vehicle with a 1, 2 or 3 axle trailer
• any Class 1 vehicle with a 1, 2 or 3 axle unit that straddles the vehicle body
• a 3 or 4 axle RV with single wheels
• a 3 or 4 axle limousine

Class 3 - 5 to 9 axle truck

• tractor-trailer, car carrier or truck with 5 to 9 axles

Class 4 - not used

Class 5

• any 2 axle vehicle with dual rear tires, including tow trucks

Class 6

• tractor, tractor-trailer, truck or RV with dual wheels and 3 axles

Class 7

• car carrier, truck, tractor-trailer, RV or any vehicle with dual wheels and 4 axles

Class 9

• 5 to 12 axle tandem-trailer (Double Bottom)

Class 8

• any two or three-axle bus used to carry 15 or more passengers