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Illinois CDL Class A Practice Test 2025

Average pass rate for CDL tests in Illinois: 64%.
Average pass rate for this test: 46%.
Hard
10 min
Score distribution:
90-100=>14%
80-89=>29%
70-79=>0%
60-69=>14%
<60%=>43%
Avg. first-try score: 80%

To get a Class A Commercial Driver’s License (CDL) in Illinois, you must meet several requirements set by the Secretary of State (DMV) and the Federal Motor Carrier Safety Administration (FMCSA). The licensing process begins by obtaining a Commercial Learner’s Permit (CLP), which requires passing the official general knowledge written exam and two additional written tests, depending on your goals. For a Class A CDL, aspiring commercial drivers must also score 80% or higher on the official combination vehicles knowledge exam. Since most commercial vehicles are equipped with an air braking system, you should also consider passing the official air brakes knowledge test to remove the L restriction from your CDL. The passing score for this test is also 80%.

You must also complete Entry-Level Driver Training (ELDT) from a provider listed in the Training Provider Registry (TPR). This training includes both theory and behind-the-wheel instruction. Once you’ve completed the training and gained enough experience, you can schedule a CDL skills test, which includes a pre-trip inspection, a basic control test, and an on-road driving exam.

Illinois CDL Class A Practice Test 2025
IL commercial driver's license
Based on the official IL CDL HandbookHandbook‑based (2025) + exam‑taker feedback
47 IL students practicing now
•285completed 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 Illinois DMV changes its handbook or website information.

Official sources we check: Illinois CDL Handbook (2025 edition), Illinois DMV website

How to use this practice test

  1. Start here. One of 4 free Illinois tests. ~10 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 Illinois permit test has 30 questions. You must get 24 correct (80%) to pass.
  • Where: Any Illinois DMV office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake after 24 hours.
  • Commonly missed: right-of-way at intersections, distracted driving and mobile device restrictions.
  • Ready to schedule? Book your IL DMV appointment

Real Illinois drivers who passed first try

Verified student reviews • Shared with permission

Teaches you everything you need to know.
Passed my hazmat test in only 24 hours of studying the material. I loved my experience and will forever recommend.
DR
Is helpful. It is probably the most in-depth program.
It is helpful. It is probably the most in-depth program that I have ever seen. It will give you the opportunity to learn everything you need to know to take your testing. As far as my schedule goes, it was really helpful to be able to do something online and not in person, on my own time and at my own progression level, and complete the program as quickly as I could possibly complete it. I was also able to go back and retake things, retest, and relearn some of the knowledge that I needed to learn in order to upgrade my license.
S
Driving Tests is easy and simple.
Driving Tests is a great place to study. It really helps you prepare for any exams that you wish to take at the DMV. I love how simple it is to use and has a very modern look to it, which makes it comfortable to use. Their AI feature also helps a lot too in case you need help with a question. It has helped me obtain my CDL and a HazMat edorsment. I would highly recommend this site to those who want to 100% pass their exams for both a DL or a CDL.
JM
49 year old test taker.
This site is amazing being older now I don’t absorb as much information and retain it like I use to but with this site I’m able to see where I am and the more I study and take these test I’ve been able to pass the Illinois cdl on the 1st try after failing three times in a row before I got the site
B
I must said and you have my #1 topapp….
I must said and you have my #1 topapp that i recommend anyone and everyone taking this test to achieve their goals in CDL driving take this practice test to take this site and you will achieve you will pass I am a witness my right hand of God best app ever it's been 32 years since I took in this test or any of these tests I was the first African America in Chicago Illinois to receive my CDL license and I have not failed yet God bless
JB

About the Illinois CDL

Our Illinois CDL Class A Practice Test can help you learn the theory behind safe commercial driving. This intuitive tool has been designed to boost your learning potential. It consists of 95 multiple-choice questions based on the official Illinois Commercial Driver’s License Study Guide (Illinois CDL Handbook 2025). You must score 80% or higher to pass, leaving little room for error.

Do not get discouraged by a failed attempt. Mistakes are a natural part of the learning journey, and we help you learn from them. Each question you get wrong will be automatically added to your personal Challenge Bank™, where you’ll find detailed explanations and helpful insight. Questions in your Challenge Bank will remain there until you answer them correctly, so we recommend visiting this section regularly.

Your dream career is within reach. Every hour you spend learning commercial driving theory brings you closer to getting your Class A CDL. Use our Illinois CDL Class A Practice Test alongside the official commercial driver’s license study guide to master this subject and ace the official written knowledge exam on your first attempt.

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.