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Oklahoma Hazardous Materials (Hazmat) CDL Practice Test

Free Hazardous Materials (Hazmat) practice questions tailored for Oklahoma CDL applicants. The questions follow FMCSA standards used by the Oklahoma Department of Public Safety.

Why this matters in Oklahoma

Oklahoma DPS publishes the Commercial Driver License Manual aligned with Oklahoma Statute Title 47 Chapter 6. If you are pursuing the Hazardous Materials (Hazmat) portion of the Oklahoma CDL exam, the Oklahoma Department of Public Safety will use the same federal core questions you practice here, plus any state-specific items the Oklahoma Department of Public Safety chooses to include.

What you will learn

The Hazmat endorsement is required to transport materials in quantities requiring placards under 49 CFR 172.504. Topics include hazard classes, the Hazardous Materials Table, shipping papers, marking, labeling, placarding, segregation, loading and unloading, communication rules, emergency response, security plans, and the Transportation Security Administration (TSA) background check.

Sample questions

• Q1. The Hazardous Materials Regulations are found in:
• Q2. The Hazardous Materials Table (HMT) is found in:
• Q3. A 'placard' on a hazmat vehicle is:
• Q4. For most hazardous materials, placarding is required when:
• Q5. Some hazardous materials require placards in any quantity. These are listed in:
• Q6. The Emergency Response Guidebook (ERG) is intended for use by:
• Q7. Shipping papers for hazmat must:
• Q8. A shipping paper for hazmat must include:
• Q9. Hazmat ID numbers begin with:
• Q10. A 'segregation' rule means:
• Q11. A driver must inspect tires of a placarded hazmat vehicle:
• Q12. A hazmat driver must hold a:
• Q13. The TSA threat assessment for the hazmat endorsement is required:
• Q14. The driver must be familiar with the contents of the:
• Q15. Class 1 hazardous materials are:
• Q16. Class 2 hazardous materials are:
• Q17. Class 3 hazardous materials are:
• Q18. Class 4 hazardous materials are:
• Q19. Class 5 hazardous materials are:
• Q20. Class 6 hazardous materials are:
• Q21. Class 7 hazardous materials are:
• Q22. Class 8 hazardous materials are:
• Q23. Class 9 hazardous materials are:
• Q24. When fueling a placarded vehicle:
• Q25. Smoking is prohibited within how many feet of a placarded vehicle (with certain exceptions…

See the full Hazardous Materials (Hazmat) bank →

Oklahoma test logistics

The Oklahoma Department of Public Safety charges a permit fee of $56.50 and a license fee of $56.50. The minimum age is 18 (intrastate) / 21 (interstate). Schedule your knowledge test through the Oklahoma Department of Public Safety once you can score above 90% on this site's practice bank.