Based on 2024 OK CDL manual

Questions
30
Mistakes allowed
6
Passing score
80%
Official OK HazMat: What to Expect
30
Total number of questions

24
Number of questions required to pass

80
Percentage required to pass

Oklahoma Commercial Driver's License
Oklahoma Commercial Driver's License

Seeking your HazMat endorsement? A great place to start is right here with our free Oklahoma CDL HazMat Practice Test. Earning your HazMat endorsement is a great way to boost your career options. It will allow you to begin transporting hazardous materials, including liquids and gases. Transporting hazardous materials requires extensive knowledge to ensure safety and this comprehensive test covers all the important areas, such as placarding, safe driving, rules and regulations about hazardous materials and much more. Can you answer these sample questions? What is something you do not need to know when determining whether placarding is required for a load? Where are the two main locations that the hazardous materials identification number appears?

In all, there are 30 questions on this practice test that have been created by experts based on information in the HazMat section of the official Oklahoma CDL Handbook. Take comfort in the knowledge that the concepts and topics found on the practice tests can be found on the real OK CDL HazMat test.  Please take this practice test as many times as necessary until you feel confident with your score. You will need to answer a minimum of 80% of the questions correctly in order to pass this practice test. Be sure to read each answer explanation so that you better understand the material. It’s time to give yourself the best possible chance at success.  Take the practice test now to assess your knowledge and identify any areas that need further study. Good luck!