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Home Chapters 6.0 6.2 CMV Groups (383.91) 6.2.1 CMV Groups (383.91)
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6.2.1 CMV Groups (383.91)

There are three commercial motor vehicle groups: A, B, and C. Every driver must be tested for the CMV group for which he or she desires a CDL. See 49 CFR 383.91 for full definitions.

CMV Group

Definition

GROUP A
(Combination Vehicle)

Any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more, provided the gross vehicle weight rating (GVWR) of the vehicles(s) being towed is in excess of 10,000 pounds.

GROUP B
(Heavy Straight Vehicle)

Any single vehicle with a GVWR of 26,001 pounds or more, or any such vehicle towing a vehicle not in excess of 10,000 pounds GVWR.

GROUP C
(Small Vehicle)

Any single vehicle, or combination of vehicles, that does not meet the definition of Group A or Group B, but is designed to transport 16 or more passengers including the driver, or is used in the transportation of hazardous materials as defined in 49 CFR 383.5.
Disclaimer
This publication is distributed by the U.S. Department of Transportation, Federal Motor Carrier Safety Administration (FMCSA). It is meant to serve as a guide only and the Agency does not assume responsibility for any omissions, errors, or ambiguity contained herein. The contents may not be relied upon as a substitute for the Agency’s published regulations.

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