A Class C CDL (Commercial Driver's License) is required for drivers operating vehicles that transport passengers or hazardous materials. This license allows individuals to drive vehicles that do not meet the criteria for Class A or Class B licenses, typically including smaller buses and vans. To obtain a Class C CDL, applicants must pass written and driving tests specific to the vehicle type. This license is essential for those looking to work in fields such as public transportation or delivery services, ensuring that drivers are qualified to handle the responsibilities of operating commercial vehicles safely.