What must a driver operating a Class M vehicle possess in addition to a Class D license?

A driver operating a Class M vehicle is required to possess a motorcycle endorsement in addition to a Class D license. This endorsement indicates that the driver has undergone the necessary training and testing specifically for operating motorcycles, which have different handling characteristics and safety requirements compared to standard vehicles. The endorsement ensures that the driver is knowledgeable about motorcycle regulations, safe riding practices, and the unique responsibilities associated with operating a motorcycle on the road.

Other options, while they may pertain to vehicle operation in general, do not specifically address the requirements for operating a Class M vehicle. Special insurance coverage is typically not mandated as a separate requirement for a motorcycle endorsement, and while a learner's permit might be a step in the licensing process, it does not suffice for operating a Class M vehicle on its own. Driving experience documentation is not a required element for obtaining a motorcycle endorsement; rather, demonstrating skills through testing is crucial.