Question To transport hazardous materials, what does a driver need? Answers A CDL only A CDL with a hazardous materials endorsement A CDL with a tank endorsement A CDL with a cargo endorsement Explanation You must have a CDL with a hazardous materials endorsement to drive a vehicle of any size that is used for transporting hazardous materials. Take a FREE Practice Test Now This questions appears in the following tests: Connecticut HazMat , Idaho HazMat , Kentucky HazMat , Louisiana HazMat , New Mexico HazMat , Oregon HazMat , South Carolina HazMat , Mississippi Tank ,