Medium- and Heavy-Duty Zero-Emission Vehicles in California
Medium- and heavy-duty vehicles have a gross vehicle weight rating of more than 10,000 pounds and include vans, buses, and trucks. This dataset is updated annually in April to reflect the number of DMV-registered vehicles “on the road” during the previous calendar year. Visit full page layout of dashboard, download data, or return to dashboard collection page.
Definition of Terms
Weight Class: The Federal Highway Administration classifies vehicles by their gross vehicle weight rating (GVWR). GVWR is the vehicle manufacturer’s specification of the vehicle’s loaded weight. Vehicle weight class ranges from 1 through 8. See below for more information on vehicle weight class.
GVWR: Gross vehicle weight rating – the maximum operating weight of the vehicle set by the manufacturer. This includes the empty vehicle weight, fuel, passengers, and cargo combined.
Light-Duty: Vehicles with a GVWR under 10,000 pounds. Includes weight classes 1 and 2.
Medium-Duty: Vehicles with a GVWR between 10,001 – 26,000 pounds. Includes weight classes 3, 4, 5, and 6.
Heavy-Duty: Vehicles with a GVWR greater than 26,000 pounds. Includes weight classes 7 and 8.
Light-Duty Weight Class
Weight class 1 vehicles have a gross vehicle weight rating of less than 6,000 pounds.
Example Models: Toyota Tacoma, Ford Transit Connect, and Chrysler Pacifica.
Weight class 2 vehicles have a gross vehicle weight rating between 6,001 pounds to 10,000 pounds.
Example Models: Ford F-150 Lightning, Rivian R1T, Ford E-Transit-350 Cargo, and Mercedes-Benz eSprinter.
Medium-Duty Weight Class
Weight class 3 vehicles have a gross vehicle weight rating between 10,001 pounds to 14,000 pounds.
Example Models: GMC Hummer EV, Navistar eStar, Workhorse C-Series Vehicles, and Chevy Silverado 3500 HD.
Weight class 4 vehicles have a gross vehicle weight rating between 14,001 pounds to 16,000 pounds.
Example Models: Cenntro City Porter and Ford F-450 Super Duty.
Weight class 5 vehicles have a gross vehicle weight rating between 16,001 pounds to 19,500 pounds.
Example Models: Chanje V8100 and Ford F-550.
Weight class 6 vehicles have a gross vehicle weight rating between 19,501 pounds to 26,000 pounds.
Example Models: BYD 6D Step Van, Xos SV, and U-Haul 26’ Truck.
Heavy-Duty Weight Class
Weight class 7 vehicles have a gross vehicle weight rating between 26,001 pounds to 33,000 pounds.
Example Models: Freightliner eM2 108/106 and Blue Bird All American/All Canadian School Bus.
Weight class 8 vehicles have a gross vehicle weight rating of 33,001 pounds and greater.
Example Models: Volvo VNR Electric Tractor, Xos ET-One, New Flyer Xcelsior, and Proterra Catalyst.
The dataset contains DMV-registered medium- and heavy-duty vehicles “on the road.” For example, this does not include vehicles at ports that are not registered for activity on California roads. In addition, data does not include direct electric trolleybuses, which draw power from overhead wires.
Data as of: December 31, 2021
Dashboard Last Updated: May 10, 2022
Please cite use of these data and images. California Energy Commission (2022). Medium- and Heavy-Duty Zero-Emission Vehicles in California. Data last updated [insert date last updated]. Retrieved [insert date retrieved] from https://www.energy.ca.gov/zevstats
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