If your goal is to gain employment driving commercial vehicles in the state of Illinois, you will need to know how to get a CDL license in Illinois. A Commercial Driver’s License (CDL) is required for any truck driver operating a vehicle that weighs 26,001 pounds or more, transports hazardous materials, or is designed to transport 16 or more passengers. This guide was prepared by our truck accident attorneys.
Steps to Obtain an Illinois CDL
- Obtain an Illinois Commercial Learner’s Permit (CLP). Before you can take the skills/driving CDL test, you must first pass the written test. Study the Illinois CDL Commercial Driver’s License Study Guide and take practice tests to prepare.
- Practice driving with a licensed CDL holder. When operating a commercial vehicle with a CLP holder, a licensed CDL holder must accompany you. This lets you gain hands-on experience and prepare for the driving test.
- Schedule and take the skills/driving test. Once you feel confident in your abilities, schedule an appointment with a certified testing facility to take the skills/driving test. This will include a pre-trip vehicle inspection, basic control skills test, and an on-road driving test.
- Obtain your CDL. If you pass the skills/driving test, you will be issued your Illinois CDL license with the necessary endorsements.

What Is a CDL in Illinois?
A CDL is a special license giving drivers permission to operatecommercial vehicles like trucks, buses, and trailers. Issued by the Illinois Secretary of State, Illinois CDL requirements include specific training and tests in order to drive a commercial motor vehicle on public roads and to engage in interstate commerce.
What Medical Certification Is Required in Illinois?
To operate a commercial vehicle, you must pass a medical examination (Section 15.2 of the study guide) and hold a valid medical examiner’s certificate. This certificate must be renewed every two years. Self-certifying your medical driving status may also be required, especially when driving across state lines.
What Are My Options for Taking CDL Training?
Prepare for the CDL exam by enrolling in a CDL school, a third-party facility, or an employer-sponsored program. Choose the option that best fits your needs and schedule.
What Is a CDL Class in Illinois?
Class A—combination vehicles have a Gross Combination Weight Rating (GCWR) of 26,001 or more pounds, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds (e.g., tractor-trailers, tankers, livestock carriers, and flatbeds).
Class B—a single vehicle has a GVWR of 26,001 or more pounds or is any such vehicle towing another not in excess of 10,000 pounds (like the following vehicles: straight trucks, large buses, box trucks, and dump trucks).
Class C—a single vehicle has a GVWR of at least 16,001 pounds but less than 26,001 pounds (e.g., small buses and hazmat vehicles). A non-CDL license is valid.
Class D—a single vehicle has a GVWR of less than 16,001 pounds.
Eligibility Requirements
In order to be eligible, Illinois CDL holders are held to a higher standard than other drivers and must:
- Be at least 18 years of age (21 years old for interstate driving)
- Hold a valid Illinois driver’s license
- Have a clean driving record with no serious traffic violations
- Pass a physical exam to confirm you are physically capable and mentally fit to drive a commercial vehicle
- Provide proof of legal presence in the United States
What Happens If I Do Not Pass My Knowledge Test or Driving Test?
The Third-time Fail Rule applies, according to the Illinois Secretary of State. Exam retakes require a 30-day wait after three failures, a 90-day wait after six failures, and a one-year wait after nine failures. Extra fees apply after every three failed attempts.
Do I Need Any Special Endorsements on My Illinois CDL?
Each endorsement requires passing additional written and skills/driving tests.
- Hazardous materials endorsement (H)
- Passenger (P)
- School bus (S)
- Tanker (N)
- Double/triple trailers (T)
- Combination vehicles (X)—for driving combination vehicles with both air brakes and hazardous materials
How Long Does It Take to Get a CDL in Illinois?
Getting a CDL in Illinois typically takes 1–3 months, depending on how quickly you complete the training and pass the required tests.
Renewing Your Illinois CDL
CDL drivers need to renew their licenses every four years by passing a vision test and paying a fee. Only a one-time legal proof of residency is required. Endorsements may require separate renewal.
Getting Help If You’re in a Truck Accident
If you’re injured in a trucking accident, report it to your employer and follow their procedures. Contact us for legal advice and to explore your options.