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ID CDL Hazardous Materials (HazMat) Marathon

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

Ready for a challenge? This Idaho CDL Hazardous Materials (HazMat) Marathon is a massive practice test that contains a mix of all 191 questions that we have available for this ID endorsement. If you give an incorrect answer, we’ll remember that question and will display it to you again at the very end of the Marathon until you’ve answered that question correctly. In other words, the Marathon will cycle through your missed questions until you answer each one correctly. You must make a 100% to pass. We suggest you attempt this one after you have practiced the state’s “regular” tests, but before the “Exam”. Give it your best shot!

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
ID commercial driver's license
Based on official ID exam questions
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Idaho

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
Methodology & Editorial Policy

12 min to complete
Available in EN and ES

What to expect on the actual ID permit test

30

questions

24

correct answers to pass

80%

passing score

Real Idaho drivers who passed first try

Verified student reviews • Shared with permission

Flying colors yay!
I got the hazmat and then decided to upgrade and take the tanker preparation testing too. Within a few days I felt prepared so I went in to DMV and took both tests and passed with 100% on each. Did not miss a single question.
JGB
Amazing program.
Practice tests are simply the best out there for CLP written test. Customer service is also amazing. Fast responses on the live chat during normal business hours. Amazing wealth of knowledge that's easy to understand. I passed my written test for CDL class A with air brakes, double/ triple, tanker, and Hazmat on the first attempt all on the same day after completing the program.
SP
I have passed my knowledge test.
I have passed my air brakes, combinations, and Doubles and triples, got my eldt for hazmat and cdl A, only thing left is the tanker endorsement and im good to go, 5 stars for them they deserve it👌🏼👌🏼🙏🏼🙏🏼
AL
Hazmat course.
Already had my CDL and signed up for the Hazmat course. If you know your stuff, you can complete the course in a few short hours. They sent my certification straight over to the FMCSA. I had my Hazmat endorsement the next day.
MTD

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