A Class B CDL (Commercial Driver's License) allows individuals to operate large vehicles that do not require a Class A license. This includes vehicles like buses, box trucks, and dump trucks with a gross vehicle weight rating (GVWR) of 26,001 pounds or more. It is essential for drivers who transport goods or passengers. To obtain a Class B CDL, applicants must pass a written test and a skills test, which includes a pre-trip inspection and driving test. Additionally, drivers may need to meet specific medical requirements and provide proof of identity. This license is crucial for many transportation jobs.