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From Section 9 of the Idaho Commercial Driver’s License Manual

Idaho CDL Hazardous Materials Practice Test

Who takes it: every CDL class (A, B and C), for the H endorsement.

Hauling placarded hazardous materials. 30 questions, 24 right to pass (80%).

Study mode

Practice Hazardous Materials

  • 10questions a round
  • 2manual sections
Exam mode

Take the Hazardous Materials test

  • 30questions
  • 24correct to pass
  • –no test taken yet
Section 9 · p. 103–121 of the Idaho Commercial Driver’s License Manual (July 2026), opens in a new tab

A Hazardous Materials question to try

You're placarding a load and have a stack of 8-inch placards. Under Idaho's manual, can you use them?

Tap an answer to see if you’re right, and the page

Where it is in the Idaho Commercial Driver’s License Manual

Your score on each part fills in as you study.

  • Manual section 9 · 2 topics
  • Hazardous materials: rules, papers, placards and loadingNot practiced yetp. 9-1 to 9-13
  • Hazardous materials: driving, emergencies and termsNot practiced yetp. 9-14 to 9-19

Idaho answers about this test

CDL Hazmat Test guide29 rules, with the pages in each state's manual

Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV

All Idaho CDL tests