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Hazardous Materials Rule for All Commercial Drivers

The Hazardous Materials Rule for All Commercial Drivers is tested at an awareness level under 49 CFR 383.111(a)(18). Every question here cites a directly codified rule: the hazmat endorsement trigger (383.93(b)(4), 383.5), the nine hazard classes (173.2), and the placarding requirement (172.504).

Practice Hazardous Materials Rule for All Commercial Drivers

5 Questions

  1. What must a driver hold to operate a commercial motor vehicle used to transport hazardous materials as defined by federal regulation?
  2. For CDL purposes, what makes a material a "hazardous material" requiring an endorsement to transport?
  3. How does federal regulation organize hazardous materials for shipping and placarding purposes?
  4. Where must placards be displayed on a vehicle or container carrying a quantity of hazardous material that requires placarding?
  5. What does federal regulation require before a driver may receive a hazardous materials endorsement and transport hazardous cargoes?