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 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 four possible answer choices. Test questions come from the Colorado Commercial Driver 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. What does "RQ" stand for?
Explanation
When marking hazardous materials in an "HM" column on a shipping paper, the letters "RQ" may be used instead of an "X" if a reportable quantity of the material must be identified.
2. If cargo containing hazardous materials is leaking, the driver should:
Explanation
In the event of a leak in a cargo of hazardous materials, do not continue to drive any longer than is necessary for safety. Continuing to drive would result in a larger area becoming contaminated. Instead, park the vehicle, secure the area, stay with the vehicle, and send someone to get help.
3. ____ identical placards must be placed on a vehicle transporting hazardous materials.
Explanation
When hazardous materials placards are required, they must be placed on all four sides of the transporting vehicle.
4. If you apply for a HazMat endorsement, you must undergo a check through which agency?
Explanation
To obtain an original or renewed hazardous materials endorsement, you must pass a Transportation Security Administration (TSA) background check.
5. A person supervising the loading of a tank:
Explanation
The loading and unloading of a tank must be watched by a qualified person. They must be alert; have a clear view of the tank; stay within 25 feet of the tank; know the hazards of the materials involved; know the procedures to follow in an emergency; and be authorized and able to move the tank if necessary.
6. Regulations relating to hazardous materials are intended to protect:
Explanation
