A hazmat tanker driver is a professional truck driver who is endorsed to transport hazardous materials over the road. In this role, you must be specially trained to follow painstaking safety standards as part of your daily duties to ensure the safety of the general population. A hazmat tanker driver is typically a highly experienced commercial truck driver. This type of position does require a CDL, but you may need additional qualifications to be legally allowed to transport or deliver hazardous waste or hazardous materials. You are required to understand the proper procedures for handling, delivering, and disposing of toxic materials.