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PermitLingo · IL

Illinois DMV Cheat Sheet: Key Numbers

The numbers people mix up most often, on one page. Print it or save it as a PDF and review it before your test.

Knowledge test format

questions
35
correct to pass
28 (80%)

Learner's permit and teen license rules by state

Learner's permit from age
15 years old
Hold the permit at least
9 months
Supervised driving hours
50 hours
Of them at night
10 hours
Supervising driver at least
21 years old

Speed limits by state

Residential district
30 mph
School zone
20 mph
Other highways
55 mph
Rural interstate (max)
70 mph

Cell phone laws for drivers by state

No phone at all for drivers under
19 years old

Parking distances by state

Fire hydrant
15 feet
Crosswalk at an intersection
20 feet
Fire station driveway
20 feet
STOP sign or signal
30 feet
Railroad crossing
50 feet
Wheels from the curb
12 inches

Car seat and booster seat laws by state

Car seat until at least
8 years old

License renewal, insurance and points by state

Report a new address within
10 days
License valid for
4 years

Every number is the answer to one of our practice questions and matches a quote from the official handbook. Rules change — check the latest handbook before your test.

Source: Illinois Rules of the Road 2025. Checked October 17, 2026.