1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
All tests
– / –
 
 
 
 
 
Advertisement
  • 0  (6 mistakes allowed to pass)

Free Delaware CDL HazMat Endorsement Practice Test 2025

Average pass rate for CDL tests in Delaware: 61%.
Average pass rate for this test: 67%.
Moderate
7 min
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 2025). 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 2025
Commercial Driver's License
Based on the official DE CDL HandbookHandbook‑based (2025) + exam‑taker feedback
3 DE students practicing now
•13completed today

Accuracy & authorship

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 at 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: Delaware CDL Handbook (2025 edition), Delaware DMV website

How to use this practice test

  1. Start here. One of 4 free Delaware tests. ~7 min. Read explanations as you go.
  2. Cover more ground. All tests have different questions - no repeats.
  3. Finish strong. Try the Exam Simulator for a full-length run.

Why this works

  • Exam-like questions from the current handbook + real test-taker patterns. Explanations cite the manual.
  • AI Assistant explains tricky items in plain language.
  • Performance Insights show your weak topics and what to study next.
  • Challenge Bank™ saves your mistakes for targeted practice.

Actual DMV permit test: What to expect?

The Delaware permit test has 30 questions. You must get 24 correct (80%) to pass.
  • Where: Any Delaware DMV office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake after 10 days.
  • Commonly missed: basic vehicle maintenance and pre-drive checks, railroad crossing procedures.
  • Ready to schedule? Book your DE DMV appointment

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 2025 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 HazMat practice test hub

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

We know what it takes to pass. And we’ve got the proof.

Driver’s Ed is - nobody wants to set foot inside the DMV. That’s why millions of learners trust us for simple, visual, effective prep.

An official & trusted partner in driver education

We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.

A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.