About the Illinois CDL exam
The Illinois CDL exam is administered by the Illinois Secretary of State. Like every state, Illinois adopts the federal standards as a baseline and adds state-specific requirements, fees, and procedures.
- Exam / licence fee: approximately $60.
- Skills testing: Illinois Secretary of State CDL Testing Centers.
- Illinois operates dedicated CDL Testing Centers separate from standard Secretary of State facilities, with appointments required for skills testing.
To get started, read the official Illinois handbook (linked above), practice with the tests on this page until you consistently score above 80%, and then schedule your exam with the Illinois Secretary of State.
What's in the Illinois exam: Practice tests for the Commercial Driver's License written exam. Questions reflect the Federal Motor Carrier Safety Administration (FMCSA) Commercial Driver's License Manual that all states adopt as the basis for their CDL exams.