Class 1 permits the operation of: Truck-tractor-trailer combinations over 11,000 kg (24,000 lbs.) and vehicles included in Class 2, 3, 4 or 5.Class 2 permits the operation of: Buses having a seating capacity over 24 passengers and vehicles included in Class 3, 4 or 5.Class 3 permits the operation of: Single trucks over 11,000 kg (24,000 lbs.) and vehicles included in Class 5 (Or any 3 axle vehicle).Class 4 permits the operation of: Buses with a seating capacity up to 24 passengers, taxies, ambulances, and vehicles included in class 5.Class 5 permits the operation of: Single motor vehicles up to 11,000 kg (24,000 lbs.) G.V.W..