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Based on official Oregon exam questions

Free Oregon CDL HazMat Endorsement Practice Test 2025

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

If you’ve already obtained your Commercial Driver’s License (CDL), you are likely already familiar with transporting cargo through Oregon’s unique terrain. Perhaps you’ve experienced the winding roads of the Cascade Mountain Range and coastal mountains and the winds and dust storms of the high desert areas, but you’ve also witnessed breathtaking sights like the Columbia River Gorge and urban living in Salem, Eugene, and Portland. Adding the Hazardous Materials (Hazmat) endorsement to your CDL is a lucrative way to increase your job opportunities and may result in higher pay, as organizations are often willing to pay more for the valuable skills of an endorsement holder!

The Hazmat endorsement enables drivers to transport materials classified as hazardous by the U.S. government. In the Beaver State, hazardous materials transported include gasoline, biodiesel, industrial chemicals, and agricultural chemicals like pesticides. Some key organizations in Oregon, such as Chevron Corporation in Portland (petroleum products distribution), Schnitzer Steel Industries also in Portland (scrap metal processing and chemical transport), and Intel in Hillsboro (uses industrial chemicals in its manufacturing of semiconductors) rely on drivers with this endorsement.

Several steps exist to ensure proper training of this select group of drivers. The process starts with the fingerprinting and background check mandated by the Transportation Security Administration (TSA). Results from TSA can take weeks, so you’ll want to study and practice in the meantime for the second step: the DMV knowledge test. This test covers federal regulations, substance handling, packaging, quantity limits, and transport configurations for hazardous materials. With a score of 80% on Oregon’s 30-question knowledge test, you can pass the test and move closer to unlocking new opportunities (Oregon CDL Handbook 2025).

Our online Oregon DMV Hazmat Endorsement practice tests are designed to take the overwhelming aspects of the study process out of the picture. We have designed them to avoid any unnecessary information and streamlined the content to resemble what you will face on the official DMV test. Additionally, you will receive immediate feedback on each response so you learn as you go without waiting until the end for corrections. Ready to roll? Once you receive your TSA results and feel prepared, you’ll visit the DMV with the necessary documents, pay the fees, pass the test, and start your next career level.

7 min to complete
Available in EN and ES
OR commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives

Authored and curated by Steven Litvintchouk, M.S.

Chief Educational Researcher (ACES member)
Methodology & Editorial Policy
Last verified for accuracy: November 2025 (reviewed weekly)

What to expect on the actual OR permit test

30

questions

24

correct answers to pass

80%

passing score

Real Oregon drivers who passed first try

Verified student reviews • Shared with permission

I took my hazmat test today in Oregon.
I took my hazmat test today in Oregon DMV and got a perfect score! This help to get my ELDT was the best help I've received. I would recommend this to anyone struggling to get their class A or any endorsement. Period!
CG
Best test experience ever.
Well would have to say your AI interactive with question either giving you examples or breaking the question down, but being able to go over any questions that you got wrong was helpful it was the best test experience that I have ever had. Went into DMV the day after I passed my ELDT training and took my Hazmat test and passed with know wrong answers you made it very easy thank you very much was a very good experience and process. Doug C
DACI
Awesome!
Guaranteed to pass I studied for 2 days and was able to pass my Hazmat endorsement test! They give you an hr to answer all the questions on the test at the DMV I was done in 7mins! Got a 100% pass score!
S
So this was extremely helpful.
I studied for my hazmat, doubles and triples, and tanker endorsements and studied everything within 3 days. I had a scheduled testing date the same week at the dmv and passed every single test! this site is truly worth the buy and is well worth it. Thank you for all the help provided! 😊 Would definitely recommend.
DM

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