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MD CDL HazMat Practice Test 3 2025

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

Your Commercial Driver’s License (CDL) will get a substantial upgrade when you add a Hazardous Materials (Hazmat) endorsement. Without it, you are legally prohibited from hauling explosives, certain fuels, radioactive materials, industrial chemicals, and infectious substances. With such a large sector of commercial driving and the potentially higher-paying opportunities it provides, why would you not add the HazMat endorsement?

Because of the potential dangers, the application process emphasizes safety: safety for you, safety for others, and safety for the environment. For this reason, obtaining this endorsement requires you to be at least 21 years of age and complete three major steps. First, you must complete Entry-Level Driver Training (ELDT) requirements. The second step is a Transportation Security Administration (TSA) fingerprinting and background check. These results can take weeks to arrive, so use this time to study for the third and final step: the MVA HazMat Knowledge Test. This test covers federal regulations, hazardous substance handling, packaging, and transport rules. Maryland’s test has 30 questions, and you’ll need to score at least 80% to pass (Maryland CDL Handbook 2025).

A wide range of materials can be hauled with this endorsement, including agricultural and manufacturing chemicals, gasoline and propane, hazardous waste, medical gasses, and materials connected to the state’s chemical and defense industries. Major employers in the Old Line State, like Lockheed Martin, Marriott International, and Baltimore Gas and Electric, rely on drivers certified to carry such loads. With all of these jobs off-limits to drivers without the HazMat endorsement, it’s a good idea to pass this test!

We’ve made preparing for the official exam easier. Our online practice tests mirror the official MVA exam and provide immediate explanations for missed questions, helping you learn as you go. Also, this practice test is just one of several that our experts have designed for Maryland HazMat exams. Once you’ve practiced and mastered this one, check out another one here: https://driving-tests.org/maryland/md-cdl-hazmat-practice-test/.

From the Appalachian Mountains to the Chesapeake Bay, Maryland offers drivers many opportunities, and each added endorsement lengthens that list. We also offer practice tests for your General Knowledge test, as well as Air Brakes practice tests to remove any air brake restrictions you may currently have. Our set of combination vehicle practice tests will offer exactly what you need to pass that official exam. Visit one here: https://driving-tests.org/maryland/md-cdl-combination-test/.

We have all of your Maryland-specific needs covered!,

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
MD CDL HazMat Practice Test 3 2025
MD commercial driver's license
Based on official MD 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 MD permit test

30

questions

24

correct answers to pass

80%

passing score

Real Maryland drivers who passed first try

Verified student reviews • Shared with permission

Two days of studying (not 48 hours)….
Two days of studying (not 48 hours) passed with 95% the Hazmat & Tanker. Great job folks!
B
First step to trucking school.
I always use this platform I was able to get my CDL A permit in less then 15 minutes, each test took me less then 4 minutes. I was able to get my hazmat and tanker in less than 10 minutes. I now have my CDL class A with hazmat and tanker and it all started here.
SA
Hazmat Endorsement.
At the end of March, I went to take the test to get my hazmat endorsement, only to discover that I needed to take some type of class before taking the test. I found driving-tests.org and determined that it was approved. I completed the requirements, all online, went back to take the test and got all of the first 24 questions (out of 30) correct, and the test ended because I already had a passing grade. I was confident when I went to take the test the 1st time, but I know that doing the program through driving-tests.org enable me to pass with no problems.
DL
Extremely tremendous!
They have multiple practice test and also valid valuable information that is extremely important to prepare for your CDL! I needed the ELDT for hazmat due to the new law and this is where i got it! They send everything right over after completing the requirements! Don’t worry, the requirements are as easy as tying your shoes! The best part is there’s a test that allows you to cover what you did not get correct! It literally drills this into your head! I went to the DMV 3 days later and i successfully passed my Hazmat TEST! I would definitely recommend this service and have to several new CDL holders that fall under the new law!
CC

More MD CDL test resources

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

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