Which document must a driver carry while operating a commercial vehicle?

A driver operating a commercial vehicle must carry a valid driver's license and any applicable permits. This requirement ensures that the driver is legally authorized to operate the specific class of commercial vehicle they are driving. The driver's license verifies that the individual has passed the necessary tests and is knowledgeable about traffic laws and safe driving practices.

In addition to the driver's license, any applicable permits could include endorsements specific to the type of vehicle or cargo being transported, such as a hazardous materials endorsement or a passenger transport permit. This is crucial for compliance with transportation regulations and safety standards.

While having a valid driver's license and insurance card is important for personal vehicles, it does not encompass all that is required for commercial driving. The vehicle registration document is necessary, but it is typically kept with the vehicle rather than on the driver's person. A commercial driving school certificate may be beneficial for training purposes, but it is not a legal requirement to carry while operating a vehicle. Thus, the combination of a valid driver's license and any applicable permits is essential for lawful commercial vehicle operation.