hazardous materials
Substances that endanger health, safety or property when transported.
Think gasoline, propane, acids, explosives, poisons. The government lists them and sorts them into hazard classes. Special rules cover how they are packed, labeled, loaded and driven.
Also called: hazardous material, HazMat
Why it matters on the CDL test
Questions ask who may haul hazardous materials, where the papers must be kept, how the vehicle is placarded, and the driver's duties.
Appears in 237 test questions
See 124 questions on the HazMat testExample: Your dispatcher offers a load of pool chemicals; you check the shipping paper for a hazard class before accepting it.
In other languages
- Español
- materiales peligrosos
- Русский
- опасные материалы (hazardous materials)
- Українська
- небезпечні матеріали
Related terms
Where it comes from
- CDL manual, Section 9.1 (intent of the regulations)
- CDL manual, Section 9.8 glossary (hazardous materials)
- 49 CFR 171.8 (definitions)
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