Below you will find a link to your local DMV which has information about obtaining a CDL.
The definition of "commercial motor vehicle" as given in FMCSR* - Part 383.91 will be used for CDL licensing purposes. The definition given in CRS 42-2-402 also applies. FHWA refers to these vehicles as Agroups,@ Colorado refers to these vehicles as a Aclass,@ either is appropriate.
(1) CDL A: Any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more; provided the GVWR of the vehicle(s) being towed is in excess of 10,000 pounds. Holders of a CDL class A license, may with the appropriate endorsements, operate vehicles within the CDL B, CDL C, basic driver's license and motorcycle classes.
(2) CDL B: Any single vehicle with a GVWR of 26,001 or more pounds, which may tow another vehicle that is not in excess of 10,000 pounds GVWR. This group includes vehicles designed to transport 16 or more passengers including the driver. Holders of a CDL class B license may, with the appropriate endorsements, operate vehicles within the CDL C, basic driver's license and motorcycle classes.
(3) CDL C: Any single vehicle, or combination of vehicles with a GVWR or a GCWR of 26,000 or less pounds that:
(a) Is designed to transport 16 or more passengers including the driver; or
(b) Transports hazardous materials in quantities sufficient to require placards under DOT regulations.
(c) Holders of a CDL Class C license may, with appropriate endorsements, operate vehicles within the basic driver's license and motorcycle classes.
* See Federal regulation incorporation statement at end of rules.
Colorado Division of Motor Vehicles
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