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Class 
No.
Vehicle Description
1  car, light van, taxi 
 2 axles 0.0 to 3.1 meters
2  car with trailer 
 3,4 or 5 axles 3.1 to 7.5 meters
3  medium length vehicle 
 2 axles 3.1 to 7.5 meters
3  medium length bus or coach 
 2 axles 3.1 to 7.5 meters
4  medium length truck or coach 
 3 axles 5.0 to 7.5 meters
5  medium length vehicle 
 4 axles 3.1 to 7.5 meters
6  long length vehicle 
 3 axles 7.5 to 18.5 meters
6  long length bus 
 3 axles 7.5 to 18.5 meters
7  long length vehicle 
 4 axles 7.5 to 18.5 meters
7  rigid 2 axle truck + 2 axle trailer 
 4 axles 7.5 to 18.5 meters
8  long length vehicles 
 5 axles 7.5 to 18.5 meters
8  rigid 3 axle truck + 2 axle trailer 
 5 axles 7.5 to 18.5 meters
9  long length vehicles 
 6 axles 7.5 to 18.5 meters
9  rigid 3 axle truck + 3 axle trailer 
 6 axles 7.5 to 18.5 meters
10  long length vehicles 
 7 or 8 axles 7.5 to 18.5 meters
11  medium combination vehicles 
 5 to 11 axles 18.5 to 34 meters
12  long combination vehicles 
 6 to 19 axles and greater than
 34 meters
13  all other vehicles