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Colorado CDL Permit Test - HazMat

(From the 2021 Colorado CDL driver handbook)

Number of questions:	30
Passing score:	24

Directions: 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.

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Passing grade —

6 or fewer errors

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When a driver is not in their vehicle, hazardous materials' shipping papers should be:

Kept on the driver's person.
Kept on the driver’s seat.
Kept under the passenger’s seat.
Placed on the dashboard.

If the words "Inhalation Hazard" appear on a package, a ____ placard must be used.

Poison gas
Explosive
Radioactive
Danger

Many products classed as poison are also:

Radioactive.
Flammable.
Heavy.
Sweet-tasting.

What should be done if the third column of the Hazardous Materials Table contains the word “Forbidden?”

The indicated substance should not be transported.
The indicated substance should be transported by air.
The indicated substance should only be transported at night.
The indicated substance should be accompanied by a security guard.