A pneumatic tanker transports materials that need to be protected from exposure to air and moisture, such as dry bulk, cement, sand, asphalt, or dry and liquid chemicals. Pneumatic tanker drivers have the certification to drive these vehicles and deliver them to their destination. In this role, you may need to load the tanker; materials are loaded and unloaded through pipes with compressed air to avoid contamination. You are responsible for transporting the materials safely to and from a job site. Many pneumatic tanker drivers work for a transportation company, but some are independent contracts that are hired directly by clients.