Practice question Which hazard class covers corrosive materials? Class 8 covers corrosive materialsThe hazard class is based on the driver license classClass 9 means the shipment is never regulatedThe receiver may choose any class after delivery Answer: A — Class 8 covers corrosive materials The correct answer is shown above. Try the full quiz for additional practice. Practice more: Indiana CDL HazMat Endorsement Test Practice Questions - Indiana CDL Hazardous Materials Endorsement Test Exam →