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Based on official Wyoming exam questions

Free Wyoming CDL HazMat Endorsement Practice Test 2025

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

Transporting cargo through Wyoming’s unique terrain gives you the opportunity to experience the Rocky Mountains, including the Wind River Range and Bighorn Mountains, as well as the high winds of the Plains areas in this often-breathtaking state. Adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL) is an excellent next step to expand your job market and potentially increase your pay as you navigate these beautiful areas!

The Hazmat endorsement qualifies drivers to transport materials classified as hazardous by the U.S. government. In the Equality State, hazardous materials transported include oil, natural gas, ammonium nitrate, propane, and certain agricultural chemicals. Some prominent organizations in Wyoming include Halliburton in Casper (oilfield services and chemicals), Sinclair Oil Corporation (fuel and oil transport), and Black Hills Corporation in Cheyenne energy and propane distribution). All of these organizations rely on drivers with the Hazmat endorsement.

Obtaining the Hazmat endorsement is a detailed process with several steps in place to ensure that drivers are properly trained to handle these materials safely. It does involve a knowledge test administered by the DOT, which covers federal regulations, substance handling, packaging, quantity limits, and transport configurations for hazardous materials. You’ll need a score of 80% on Wyoming’s 30-question knowledge test to pass (Wyoming CDL Handbook 2025). But before you begin studying for that test, you’ll want to take care of the mandatory fingerprinting and background check conducted by the Transportation Security Administration (TSA). Results from TSA can take weeks, so you’ll want to use that wait time to prepare for the aforementioned DOT knowledge test.

The good news is that we have streamlined the content of our online Wyoming DOT Hazmat Endorsement practice tests to avoid any unnecessary information and designed the practice tests to resemble what you will face on the official DOT test. We also provide feedback on each response in real time so you can learn as you go without waiting until the end for corrections. Ready to kick things off? Once you receive your TSA results and feel prepared by all the practice, you’ll visit the DOT with the necessary documents, pay the fees, pass the test, and take the next big step in your career.

7 min to complete
Available in EN and ES
WY 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 WY permit test

30

questions

24

correct answers to pass

80%

passing score

Real Wyoming drivers who passed first try

Verified student reviews • Shared with permission

The practice tests were the real exam!
The practice tests for hazmat and tankers were extremely helpful! Almost every question on the real test was part of the practice questions. I only missed 1 question on hazmat, it was what material can not be loaded in the same cmv vehicle as class 1 explosives, and the answer was radioactive materials.
AS
Best test out.
I was already using this to study to take the Hazmat endorsement. I went to the dmv and was told I need to take the ELDT. Luckily for me I was already using this test so I passed on the first try. Same questions that are on the test.
D
Passed all 4 exams, Hazmat, combo, air brake doubles and triples.
I was using other sites for my studies, but thought I was missing something. I had 6 days till my CDL-A DMV tests, I took the Hazmat, Combo, Air Brake and Doubles/Triples exams and passed them all in one sitting. The feedback and explanations of wrong answers really helped me grasp the full answer of the questions and this helped me throughout my studies. Def worth the price for as long as you need it. John.
J
Guaranteed To Pass!
I took ELDT with Driving-Tests back in January and got my certificate. I wanted to get my HazMat, Tank and Double/Triple Endorsements and knew of only one place that made it easy for me to pass my Official Exam and I am officially a CDL-A: w/ X, T Endorsements!
DB
I only had one day to crunch….
I only had one day to crunch to study for my license renewal with my hazmat and taking endorsement I study everything I could took the random testing over and over when I went to the DMV I felt I already was familiar with the testing procedure and how to strategize myself to skip questions that I didn't know and only answer the questions I knew I passed with flying colors 100%. This course is well presented well organized if you never had a license of the CDL this course will guarantee you you will pass and give you the confidence to pass if you're nervous at test taking that's one time investment for for this one month I will do it again and suggest anyone who needs this course to take it.
JW
I had to renew my HazMat.
Even if you have your HazMat and are just renewing it this is good to have, things change. I failed the first time, only by a couple, went home, got online, got this and went back a couple days later and passed. I'll keep it in my computer for a refresher.
GL

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