A passenger endorsement is a special endorsement that allows a commercial drivers license (CDL) holder to operate a commercial motor vehicle designed to transport 16 or more passengers, including the driver. This endorsement is required for drivers of school buses, service buses, student transport vehicles, airport shuttles, and limousines. To obtain a passenger endorsement, drivers must pass a special knowledge test and a skills test in a passenger vehicle. The knowledge test covers topics such as vehicle inspection, basic control skills, and transporting passengers. The skills test evaluates the drivers ability to safely operate a passenger vehicle. Drivers with a passenger endorsement must also know proper procedures for loading and unloading passengers, using emergency exits, responding to emergency situations, and braking procedures.