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. Test questions come from the Ohio Commercial Driver’s License Manual. 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

1. When loading compressed gas, the liquid discharge valves should be:

Explanation
On a compressed gas tank, liquid discharge valves must always be kept closed, except during loading and unloading.

2. The only way to effectively check your tire pressure is:

Explanation
You must examine each tire on a motor vehicle at the beginning of each trip. The only effective way to check tire pressure is by using a tire pressure gauge.

3. Who must mark and label the materials for shipping?

Explanation
Shippers of hazardous materials are required to warn drivers and others about the risks of the materials by putting hazard warning labels on packages, putting placards on the transporting vehicles, and providing proper shipping papers and emergency response information.

4. As a driver, which of the following is not your job at the scene of an accident?

Explanation
If you are involved in an accident while carrying hazardous materials, it is your responsibility as the driver to keep people away from the scene; limit the spread of material if you can safely do so; inform emergency response personnel of the dangers posed by the materials; and provide emergency personnel with the shipping papers and emergency response information. Unless you have protective equipment and the necessary training, do not try to fight hazardous materials fires yourself.

5. What does a shipping paper describe?

Explanation
Among other information, shipping papers must include a description of the specific hazardous materials being transported.

6. A material’s hazard class reflects:

Explanation
A hazardous material will be placed into one of nine classes to explain the type of risks associated with the material.
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