What does an "M" endorsement allow a driver to operate?

The "M" endorsement specifically allows a driver to operate motorcycles. This endorsement is essential for those wishing to ride motorcycles legally on public roads, as it signifies that the driver has completed the necessary training and understands the specific skills required for safe motorcycle operation.

Motorcycles have different handling characteristics and safety concerns compared to standard passenger vehicles, so the endorsement ensures that operators are knowledgeable about these differences. This endorsement is integral to promoting road safety and reducing the likelihood of accidents involving motorcycles.

In contrast, the other options relate to different vehicle categories that do not require an "M" endorsement. Medium-sized trucks, medical transport vehicles, and multi-passenger vehicles generally have their own specific requirements and endorsements that focus on those vehicle types.