Example of Heavy- Duty Vehicles
A majority of on-road mobile emissions are generated from heavy-duty vehicles [1]. These vehicles are categorized as vehicles that have a gross vehicle weight rating (GVWR) over 14,000 pounds.
Examples of vehicles over 14,000 pounds GVWR include:

Bucket Truck
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Delivery Truck
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Dump Truck
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Inner- City Tour Bus
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Large Motor Home
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Refuse Hauler
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School Bus
|

Stake Truck
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Step Van
|

Tanker Truck
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Tow Truck
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Tractor-Trailer Rig
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Transit Bus
|
|
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- Air Quality Handbook, Page 9