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Free Delaware CDL HazMat Endorsement Practice Test 2026

Avg. pass rate on our DE tests: 61%.
Average pass rate for this test: 67%.
Moderate
7 min
80% fail this test first try • Better here than at DMV
Score distribution:
90-100=>16%
80-89=>34%
70-79=>28%
60-69=>11%
<60%=>10%
Avg. first-try score: 80%

Ready to jumpstart your Commercial Driver’s License (CDL) with instant access to more job opportunities and potentially higher pay? Adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL) is a powerful way to do just that! The Hazmat certification enables you to transport materials that the U.S. government regulates as hazardous. Explosives, certain types of fuel, industrial chemicals, and radioactive materials represent a whole new set of opportunities on the horizon. Above all, this endorsement ensures the highest level of safety for you, the people around you, and the environment.

The process for a Hazmat endorsement requires you to be fingerprinted, pass a background check, and pass the DMV knowledge test. The topics covered in this test include federal regulations, material handling, packaging, transport configurations, and quantity limits. Delaware’s knowledge test is made up of 30questions and you’ll need a score of at least 80% (24 out of 30 answers) to pass (Delaware CDL Handbook 2026). This requirement ensures that you are well prepared for the responsibilities that come with transporting hazardous materials. Lastly, the minimum age for the Hazmat endorsement is 21 for interstate transport, and in Delaware, this applies to intrastate work as well.

Free Delaware CDL HazMat Endorsement Practice Test 2026
Commercial Driver's License
Original questions by our team Based on 2026 DE CDL Handbook
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Andrei Zakhareuski, Co-founder & CEO, Driving-Tests.org

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the Delaware DMV changes its handbook or website information. Official sources we check: 

Real Delaware drivers who passed first try

Verified student reviews • Shared with permission

I found this course to be excellent….
I completed the program in basically 2 days. I really liked the ability to go back as often as I wanted for reviews. I did get one question incorrect on the test at the dmv but that was my error in how I read the question. I have discussed the material in this course with drivers who hold a hazmat endorsement and they were impressed with how well I knew the material. Some even said I knew it better than they did. Again I say excellent course!
BK

About the Delaware CDL

Okay, having shared all of that, let’s get back to the potential income increase available with this endorsement. According to the 2026 Delaware CDL manual, the Hazmat endorsement allows drivers to handle more specialized cargo hauls! In Delaware, there are multiple industries with cargo transport requiring a Hazmat endorsement, including chemical manufacturing (DuPont and Chemours are notable companies here), petroleum and energy, agriculture, waste management, healthcare and pharmaceuticals, and manufacturing and industrial services. That’s a lot of new job opportunities, but it does sound a little daunting, right? It doesn’t have to be at all.

Our Delaware DMV Hazmat Endorsement practice tests strategically circumvent all of the unnecessary information you’ll come across during an internet search and organize only the most relevant material in a design that mimics both the structure and content of what you’ll face at the DMV site. When you feel ready, take your documents to the DMV, pay any fees, and take the official knowledge test.

More DE CDL test resources

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

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