Illinois CDL Requirements
Prepare for the Illinois CDL permit test, Illinois CDL skills test, DOT physical requirements, and official Illinois Secretary of State CDL steps.
CDL Requirements
Basic Requirements
- Must be at least 18 years old (21 for interstate commerce)
- Hold a valid non-commercial license and bring the identity and residency documents Illinois Secretary of State requires
- Complete self-certification and maintain a DOT medical certificate when your driving category requires one
- Pass the knowledge tests for your CDL class, brake system, and requested endorsements
Application Items to Confirm in Illinois
Use these as planning prompts, then verify the current documents and eligibility rules with Illinois Secretary of State before your visit.
- Medical certificate
- Urban driving training
- CLP fee: $50
- ELDT certification
Illinois CDL Permit Test Practice
The Illinois CDL permit test starts with the official Illinois Commercial Driver’s License Study Guide DSD CDL 10. Use it with practice questions for General Knowledge, Air Brakes, Combination Vehicles, and any endorsement you need.
We now have Illinois-focused CDL permit questions that link directly to answer explanations and related practice paths.
What Illinois CDL Applicants Should Know in 2026
These points answer the permit, road-test, and physical-requirement questions drivers most often search for. Requirements can change, so use this summary to prepare and confirm your final application details with Illinois Secretary of State.
- Start with the Illinois Commercial Driver’s License Study Guide DSD CDL 10 and study the sections for your intended CDL class, brake system, and endorsements.
- First-time Class A or B applicants, Class B-to-A upgrades, and first-time H, P, or S endorsement applicants must complete applicable Entry-Level Driver Training.
- A CDL skills test normally covers vehicle inspection, basic controls, and on-road driving. Confirm the current permit wait, scheduling rules, and test-vehicle requirements with Illinois Secretary of State.
Build Your Illinois CDL Study Plan
Do not study every handbook section equally. Match your practice to the vehicle you plan to drive and use this order to cover the tests that apply to you.
1. Core knowledge
Study General Knowledge first. Add Air Brakes if the vehicle uses them and Combination Vehicles for a Class A path.
2. Endorsements
Study separate sections for tanker, doubles/triples, passenger, school bus, or hazardous materials only when your job requires them.
3. Skills test
After the permit tests, rehearse the inspection, basic-control maneuvers, and on-road habits in a representative vehicle.
Illinois-Specific Regulations
Chicago area restrictions
Great Lakes shipping regulations
Agricultural transport requirements
Federal DACH requirements (effective Nov 2024)
State rules and procedures change. Treat these as topics to review and use the official Illinois Secretary of State resource for the final requirement.
Testing Process: Permit & Road Test
Study & Practice for Permit
Use our free practice tests to prepare for the general knowledge, air brakes, and combination vehicle exams.
Get DOT Physical
Determine your self-certification category and obtain a DOT medical certificate from a certified examiner when required.
Apply for CLP (Permit)
Apply for a Commercial Learner's Permit and pass the required knowledge tests through Illinois Secretary of State.
CDL Road Test
Schedule and pass the pre-trip inspection, basic controls, and on-road driving test.
Illinois CDL Road Test & Physical Requirements
The Illinois CDL skills test normally checks vehicle inspection, basic control, and on-road driving. Practice the permit material first, then study pre-trip inspection and low-speed control so the skills test does not feel like a separate surprise.
Illinois applicants should confirm their driving category, self-certification, and any required DOT medical record with Illinois Secretary of State.
Before scheduling, confirm current fees, medical certificate rules, CLP holding periods, and appointment steps with Illinois Secretary of State.
Free Practice Tests
Need Help?
For current questions about CDL requirements in Illinois, contact Illinois Secretary of State or your local driver licensing office.