You must possess appropriate endorsements based upon the loads you carry. Prepare for the Colorado Class A CDL written tests.įor drivers towing trailers with more than 10,000 pounds of GVWR.Īllows the holder to operate Class B and C vehicles.ĭrivers may be able to operate tractor-trailers, truck and trailer combinations, double and triple trailers, tractor-trailer buses, tanker vehicles, livestock carriers, and flatbeds.Ĭommon careers for holders include heavy truck drivers, dispatchers, local drivers, couriers, and bus drivers. This also includes any combination of vehicles with a gross vehicle weight rating (GVWR) greater than 26,000 pounds (provided that the GVWR of the towed vehicle is in excess of 10,000 pounds) under the following conditions. In most states, this license allows the driver to operate any vehicle with a semi-trailer or trailer with two or more axles.
