Vehicle Classification Information
Vehicle classification is based on the height of the vehicle over the first two axles and the total number of axles, including any towed vehicles or trailers. Vehicles under 7 feet 6 inches in height are considered “LOW” (L). Vehicles 7 feet 6 inches in height or greater are considered “HIGH” (H).
The total number of axles plus the height designation equals the vehicle class as shown in the table (Figure 1) below. Diagram (Figure 2) below shows examples of axle counts on various vehicles. Example: Most two-axle passenger vehicles are Class 2L.
| Class | Height | Number of Axles |
|---|---|---|
| 2L | UNDER 7 feet 6 inches | 2 |
| 3L | UNDER 7 feet 6 inches | 3 |
| 4L | UNDER 7 feet 6 inches | 4 or more |
| 2H | 7 feet 6 inches OR GREATER | 2 |
| 3H | 7 feet 6 inches OR GREATER | 3 |
| 4H | 7 feet 6 inches OR GREATER | 4 |
| 5H | 7 feet 6 inches OR GREATER | 5 |
| 6H | 7 feet 6 inches OR GREATER | 6 |
| 7H | 7 feet 6 inches OR GREATER | 7 or more |
*Note - E-ZPass discount reflected in E-ZPass Toll Schedules
Figure 2 - Examples of axle counts on various vehicles
5 axles
2 axles
