As a CDL tanker driver, you transport dry bulk or liquids, including petroleum and other types of fuel, and deliver them to customers or disposal sites. Your responsibilities include filling up your tank, driving your cargo to the appropriate location, and maintaining documented records. A tanker driver follows strict regulations and completes much of the manual labor alone. Your day-to-day duties may include vehicle inspection, hooking hoses and other equipment to tank reservoirs and your tanker, reading gauges, recording how much liquid or cargo you haul, and following local and federal regulations when driving with hazardous materials.