Truck classification

The Environmental Protection Agency (EPA) has a separate system of emissions classifications for trucks.

[23] Over time, payload capacities for most domestic pickup trucks have increased while the ton titles have stayed the same.

[23] The now-imprecise ton rating has continued since the post World War II era to compare standard sizes, rather than actual capacities.

[25][26] In 1975, a change in U.S. emission laws required any vehicle under 6000 pounds GVWR to burn unleaded fuel.

The Chevrolet Silverado/GMC Sierra 1500, Ford F-150, Nissan Titan, Ram 1500, and Toyota Tundra are called "half-ton" pickups (1⁄2-ton).

[32] Industries that generally use Class 8 trucks are long-distance freight transportation, construction, and heavy equipment moving.

[33] Vehicle classifications vary among provinces in Canada, due to "differences in size and weight regulations, economic activity, physical environment, and other issues".

[34]: 3–4 [needs update] In accident reporting, eight jurisdictions subdivide trucks by GVWR into light and heavy classes at approximately 4500 kg (9921 lb).