The main difference between a Cdl Propane Driver and a Cdl Tanker Driver lies in the type of cargo they transport. Cdl Propane Drivers specifically handle propane gas, requiring specialized training and safety protocols. Cdl Tanker Drivers may transport various liquids, including chemicals or fuel, but not necessarily propane. Both roles require a commercial driver's license (CDL) with tanker endorsements, and they often work in similar environments, such as distribution centers and on-road deliveries. The choice depends on the specific industry and cargo type.