Why must commercial drivers always carry their CDL and medical card?

Commercial drivers must always carry their Commercial Driver's License (CDL) and medical card because these documents confirm that they are legally qualified to operate a commercial vehicle. The CDL is a certification that verifies the driver has met specific training and testing requirements necessary for operating larger and more complex vehicles, while the medical card ensures that the driver meets the health standards set forth for commercial driving, ensuring safety on the road.

Without these documents, a driver may be unable to legally operate a commercial vehicle, which can lead to serious legal consequences and safety risks. Carrying these documents also helps in regulatory compliance during roadside inspections, making it essential for the driver to have them readily available and up-to-date. The other options do not accurately reflect the legal requirements and responsibilities of commercial drivers.