How many classes of hazardous materials are there? Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Ohio Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance and I want to compare options. Question How many classes of hazardous materials are there? Answers One Three Six Nine Explanation A hazardous material will be placed into one of nine classes to explain the type of risks associated with the material. This questions appears in the following tests: Colorado Passenger Minnesota Passenger Mississippi Bus New York Bus New York Bus Texas Passenger
