HazMat

This endorsement is required to haul hazardous materials as defined in Title 49, CFR, §383.5. To receive this endorsement, drivers must also pass a Transportation Security Administration background.. Read More

This endorsement is required to haul hazardous materials as defined in Title 49, CFR, §383.5. To receive this endorsement, drivers must also pass a Transportation Security Administration background check. To receive this endorsement, applicants must pass a test. The test consists of 30 multiple choice questions. To pass, the applicant must answer at least 24 questions correctly. Each question has three possible answer choices. Test questions come from the Commercial Driver Guide. Questions come from the chapter covering: Hazardous Materials. The Hazardous Materials endorsement can be used with Class A, B and C CDL.

Number of Question
Passing Score

7. A hazardous material's identification number should appear:

Explanation
A material's ID number must appear on its accompanying shipping paper as well as on its packaging. It also must appear on cargo tanks and other bulk packaging.

8. If transporting chlorine, what must be in the vehicle?

Explanation
If transporting chlorine in cargo tanks, a driver must have an approved gas mask in their vehicle.

9. Load hazardous materials:

Explanation
Always load hazardous materials away from heat sources. Be aware of regulations on explosive or flammable materials that prohibit them from being loaded in cargo spaces with heaters.

10. A person attending a placarded vehicle must be:

Explanation
A person attending a placarded vehicle must be awake inside the vehicle or otherwise within 100 feet of the vehicle; know the hazards associated with the materials; know what to do in an emergency; and be able and authorized to move the tank if necessary.

11. If loading corrosive materials, you should not:

Explanation
If loading by hand, load breakable containers of corrosive liquid one by one. Keep them facing upright. Do not drop or roll the containers.

12. During a cargo fire, opening the trailer doors may actually cause the fire to expand because doing so:

Explanation
When experiencing a cargo fire, it may be a bad idea to open the doors to the trailer. Doing so allows oxygen to enter the area, potentially causing the fire to flare up and expand.
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