Which of the following is NOT a class of CDL license?

In the context of commercial drivers' licenses (CDLs), Class A, Class B, and Class C are all recognized classes that define the type of vehicle a driver is permitted to operate. Class A generally allows for the operation of combination vehicles with a gross combination weight rating of 26,001 pounds or more, provided that the towed vehicle is more than 10,000 pounds. Class B permits the operation of single vehicles with a gross vehicle weight rating of 26,001 pounds or more, and Class C is for vehicles designed to transport 16 or more passengers (including the driver) or hazardous materials.

Class D, however, is not a class of CDL. Instead, it typically refers to a standard driver's license intended for operating personal vehicles. By understanding this distinction, it is clear that Class D is not included in the classifications of commercial driving licenses, making it the correct answer to identify as not being a class of CDL license.

Recognizing these classes is essential for anyone preparing for the Vermont CDL Permit Practice Test and understanding the different licensing requirements for various vehicle types.