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Based on official Maryland exam questions

Free Maryland CDL HazMat Endorsement Practice Test 2025

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

From the Appalachian Mountains to the west to the Chesapeake Bay and flat plains to the east, you experience steep mountainous grades and metropolitan cities, seeing all sorts of sights in the great state of Maryland. We are delighted that you are considering adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL). You obviously want to add marketability and a potential increase in earnings to your career. The Hazmat endorsement is the key to legally transporting materials that the U.S. government has deemed hazardous. The materials unlocked by the endorsement for transport range from explosives and certain types of fuel to industrial chemicals, radioactive materials and infectious substances. “Explosives?!” Yes, explosives! That’s why the most important objective of this endorsement process is to ensure safety.

The minimum age for the Hazmat endorsement in the Old Line State is 21 (this is true at the national level, per federal law). To add this endorsement, you’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check and the MVA knowledge test. The knowledge test covers federal regulations, substance handling, and other topics. Maryland’s knowledge test is made up of 30 questions and must be passed with a score of at least 80% (Maryland CDL Handbook 2025).

Let’s get back to the increased opportunities available. In Maryland, hazardous materials requiring a Hazmat endorsement include chemicals used in agriculture and manufacturing, gasoline, propane, hazardous waste, medical gasses (due to the state’s large healthcare industry), and materials associated with the chemical and defense industries. Companies you’ve heard of requiring the endorsement for many of their cargo hauls include Lockheed Martin (Bethesda), Marriott International (Bethesda), and Baltimore Gas and Electric. Amazing, huh? Now check out how we’ve eased the process.

We have specifically designed our online MVA Maryland CDL Hazmat Endorsement practice tests to resemble the official MVA test and avoid the overwhelming amount of information you’ll find online. Additionally, if you get an answer wrong, we provide an explanation immediately (instead of at the end of the test). First, apply for your fingerprinting and background check. This response can take weeks, so use that time to study with our practice tests. When the results are in, and you feel prepared, visit the MVA with the necessary documents, pay the fees, and take the test.

Pass the first time with Premium
99.06% of our Premium users pass first try
7 min to complete
Available in EN and ES
MD commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives

Verified for accuracy: October 2025

Reviewed by Steven Litvintchouk, M.S.
Chief Educational Researcher (ACES member)
Methodology & Editorial Policy

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

Are you in another state?

4.36/5
88 votes
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