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Illinois · IL
Illinois CDL
Knowledge Test
Everything you need to pass the Illinois CDL knowledge test. The same FMCSA-standardized questions used across all 50 states.
Total CDL fee
$60
CLP wait
14 days
Min age
18+
To pass
80%
CDL Test Sections
The CDL knowledge test is administered by section. Passing score for all sections is 80%.
✓
General KnowledgeREQUIRED
50 questions · Pass with 40+
A
Air Brakes
25 questions · Pass with 20+
C
Combination Vehicles
20 questions · Pass with 16+
H
Hazardous Materials (HazMat)
30 questions · Pass with 24+
D
Doubles & Triples
20 questions · Pass with 16+
T
Tanker Vehicles
20 questions · Pass with 16+
P
Passenger Transport
20 questions · Pass with 16+
S
School Bus
20 questions · Pass with 16+
What to Know About CDL in Illinois
Illinois CDL fees: approximately $60 total (CLP + CDL)
Illinois is the 5th largest trucking state in the US
Chicago O'Hare and major rail yards create strong freight demand
Illinois requires a CDL skills test at an approved third-party testing site
The written knowledge test is computerized at Secretary of State facilities
Illinois CDL holders driving hazmat must register with FMCSA
Legal notice
This information is provided for educational purposes only. Requirements can change. Always verify with Illinois Secretary of State for the most current information.
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