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TN CDL HazMat Practice Test 3 2025

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

Adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL) is one of the smartest moves you can make as a driver in Tennessee. The list of opportunities and potentially -higher pay is quite lucrative, and the demand for drivers in Tennessee is high.

The Hazmat endorsement authorizes you to transport materials classified as hazardous by the U.S. government. These materials in the Volunteer State include petroleum products, agricultural chemicals, industrial chemicals, explosives, and construction-related chemicals. Major employers such as FedEx (Memphis headquarters), Eastman Chemical Company (Kingsport), Nissan North America (Smyrna), and Pilot Flying J (Knoxville) rely on HazMat-endorsed drivers.

Because of the risks involved, the process comes with a few hurdles designed to protect you, the public, and the environment. First, you’ll need to make sure all Entry-Level Driver Training (ELDT) requirements have been met. Next, you must submit your fingerprints and a background check with the Transportation Security Administration (TSA). While you wait for what can sometimes be weeks for results, you’ll want to strategically use that time to prepare for the final step: the DMV HazMat Knowledge Test. The official test covers federal regulations, substance handling, material packaging, quantity limits, and transport configurations and requires a minimum score of 80% of on 30 questions (Tennessee CDL Handbook 2025).

With all of that in mind, our online practice tests are designed to depressurize the situation. Mimicking the official DMV test, our practice tests cut through the noise of unnecessary material and focus on what you will face on the official exam. You’ll receive immediate feedback on each response, helping you learn as you go. Once you’ve aced this practice test, check out another one from our series of Tennessee HazMat materials: https://driving-tests.org/tennessee/tn-cdl-hazmat-practice-test/. Check out our other Tennessee endorsement practice tests as well as our Air Brakes series and Combination Vehicle test materials. All designed to help you pass each official test on your first attempt!

Once you’ve confirmed all ELDT requirements are met, TSA clearance is received, and you feel prepared, having practiced with our tests, bring your documents and fees to the DMV and ace the test! Whether you’re hauling freight along the steep grades of the Appalachian Mountains in the east, across the rugged Cumberland Plateau, or through the rolling hills and plains of central Tennessee, the HazMat endorsement will help you earn top dollar as you go.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
TN CDL HazMat Practice Test 3 2025
Commercial Driver's License
Based on official TN exam questions
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

6 min to complete
Available in EN and ES

What to expect on the actual TN permit test

30

questions

24

correct answers to pass

80%

passing score

Real Tennessee drivers who passed first try

Verified student reviews • Shared with permission

Dedication pays off.
First of all, the company was very honest and helpful with informing me about the program and how it works. The material was so straight forward that the only thing that I had to do was sit down and commit myself and learn everything. I enjoyed how the material was presented to me. It wasn’t just thrown together like some other schools do just to make a buck, this was presented in a step by step tutorial that it made the material easy and fun to learn. But you have to put the time into it, I personally put 3 wholehearted days into it and my scores are proof of all my hard work.
HS
It really took only a day?
I wasn't happy hearing that I needed to take the additional steps to get my HazMat certification and endorsement. driving-tests.org has an excellent service at a great price. I passed your website on to my brother. I signed up two nights ago and obtained three endorsements today. I think all three tests took approximately 10 minutes to pass. Really happy I found your website.
JG
This is an amazing program.
I signed up two days be I intended to take my HazMat and Tanker endorsement tests. I completed the ELDT in a matter of hours then spent a few hours taking the practice exams the day before my scheduled test. I took both exams in less than 15 minutes and missed two questions due to a reading error on my part. This course is money well spent.
JS
Highly recommended.
Almost every test question was in the three different sets of practice tests for hazmat general knowledge air brakes combination vehicle has practice tests for school bus and everything else you can test for at the dmv
JD

More TN CDL test resources

  1. HazMat Test 1
  2. HazMat Test 2
  3. HazMat Test 3 (you are here)

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