Illinois · Alcohol, Drugs & Impairment
What blood-alcohol concentration (BAC) is illegal for adult drivers age 21 and older in Illinois?
- 0.05% or more
- 0.08% or more
- 0.10% or more
- 0.15% or more
Correct answer
0.08% or more
Why this is correct
It is illegal to drive with a BAC of 0.08% or more in Illinois.
Illinois Driver Handbook, p. 55