Which type of trailer requires a Class A CDL?

A Class A CDL is required to operate a combination of vehicles where the gross combination weight rating (GCWR) exceeds 26,000 pounds, provided that the trailer being towed has a weight rating of more than 10,000 pounds. This means that if you are hauling a trailer weighing over 10,000 pounds as part of a combination vehicle, you must have a Class A CDL. This requirement ensures that drivers are trained and qualified to handle the complexities and responsibilities associated with operating heavier and larger vehicles, which may include greater stopping distances, maneuverability concerns, and the potential for more significant impacts in an accident.

Trailers under 10,000 pounds, single-unit trailers that are not involved in a combination vehicle, or non-commercial trailers do not necessitate a Class A CDL since they fall within categories that can be handled with a lower class of license, such as a Class B or C, depending on the situation. Therefore, option A directly aligns with the licensing requirements for the operation of heavier trailers in the context of commercial driving.