On the gross vehicle weight (GVW) scale, Class 6 (19,501 – 26,000 lbs.) and Class 7 (26,001 – 33,000 lbs.) trucks are both considered medium-duty vehicles and include all fuel types and applications, including school buses.

Medium-duty commercial vehicles are segmented into four categories:

• Trucks (like the image above)
• Bus
• RV
• Step Van