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Based on official Washington exam questions

Free Washington CDL HazMat Endorsement Practice Test 2025

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

Washington State Apples, the Space Needle, Pike’s Place, and the coffee culture, added to Washington’s diverse landscape, and you’ll find lots to enjoy as you drive through the state. Since you’re here, you must be interested in the opportunities available once you’ve added the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL). For 18–20-year-olds, Washington allows you to obtain a CDL and drive within state lines; however, you cannot obtain the hazmat endorsement until you reach the age of 21 per federal law. For those 21 and older, let’s take a look at this endorsement.

The U.S. government has labeled certain materials as hazardous and the Hazmat endorsement permits drivers to transport these items. They range from explosives to certain types of fuel, industrial chemicals, radioactive materials, and infectious substances. “Yikes! What am I getting myself into?!” Don’t worry. The most important objective of this endorsement process is to ensure your safety and protect the people and environment in your driving area.

To add this endorsement, you’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check. Taking care of that requirement is step one. While you wait for these results, you can tackle the second requirement: the DOL knowledge test. The knowledge test includes topics like federal regulations, substance handling, material packaging, quantity limits, and transport configurations for hazardous materials. You’ll have to score 80% or higher. You’ll need 24 of them answered correctly (Washington CDL Handbook 2025).

In the Evergreen State, there are multiple industries requiring a Hazmat endorsement. They include petroleum and fuel distribution (Shell and BP America have distribution facilities in the state), chemical manufacturing (Univar Solutions is headquartered in Belleview), agricultural chemicals (Wilbur-Elis and Helena Agri-Enterprises), waste management and environmental sciences (Clean Harbors and Stericycle), and industrial gas suppliers like Airgas and Praxair. What a list! The good news is we have simplified the process.

Our online Washington CDL HazMat Endorsement practice tests are designed to focus on what’s truly relevant instead of the mountain of information you’ll find online and mimic what you will face on the official DOL test. Don’t delay. Get your TSA requirements submitted and practice with our tests until they arrive. Then, go to the DOL with the necessary documents, pay the fees, and confidently pass the test.

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

30

questions

24

correct answers to pass

80%

passing score

Real Washington drivers who passed first try

Verified student reviews • Shared with permission

Helped me pass my Washington state CDL.
This website helped me pass my Washington state CDL exam - airbreaks, doubles and triples and tankers. I’m using it now to study for my hazmat. My daughter uses it to study for her regular drivers license for Louisiana. I would recommend it to anyone needing practice test for all DMV needs!
E
Give them a try! A decision you won't regret.
I had a great experience, straight forward and easy to understand content. I studied the course for Hazmat, Tankers, Doubles and Triples and while I aced both Hazmat and Tankers with a 100%, the questions I missed in my actual test for doubles and triples was because I didn't stop to analyze the questions before submitting my answers. Don't do like me and sleep on it, this is a decision you won't regret.
JM
I really appreciate the process you….
I really appreciate the process you guys n gals created for the hazmat. It definitely helped me understand in depth the rules & regulations. I’m super glad I found the website and even more glad I passed my mvd hazmat test with flying colors after studying for 4 days.
WK
Well.
Well been a long time since I needed to get the Haz Mat. (Pre 911). Changed to a new driver job the required it. The TSA wait is the perfect time to get re acquainted with the ever changing Haz Mat regulations. At the state testing site, didn’t miss one question and passed once I hit my 24th question in a row correct. The knowledge you learn here is even perfect for someone even who needs it for non- driving HazMat awareness jobs. Highly recommended and fast updating with state entities, your Edlt will be at the DMV before you ever arrive to test! Thank for money well spent.
AB

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