Illinois permit test: alcohol & drugs
BAC limits, implied consent, penalties, open containers and impairment. 9 questions.
In Illinois, it is illegal for an adult to drive with a blood-alcohol concentration (BAC) of:
Keyboard: press 1–4 or A–D to answer, Enter for the next question, S to save, R to read aloud, P to pause reading, L to listen and answer.
Sample alcohol & drugs questions
In Illinois, it is illegal for an adult to drive with a blood-alcohol concentration (BAC) of:
- A .15% or more
- B .10% or more
- C .05% or more
- D .08% or more
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D. .08% or more
It is illegal to drive with a BAC of .08% or more. You can still be convicted of DUI below .08% if your driving is impaired, so the only safe choice is not to drink and drive.
Your BAC tests at .06% but you were weaving across lanes. Can you be convicted of DUI in Illinois?
- A Yes, if your driving ability is impaired
- B No, unless you also caused a crash
- C Only if you are under age 18
- D No, a DUI requires a BAC of .08% or more
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A. Yes, if your driving ability is impaired
.08% is the level at which driving is automatically illegal, but it is not a safe limit. Alcohol affects your driving even below it, and Illinois can convict you of DUI if your ability is impaired.
A first-time offender arrested for DUI in Illinois refuses chemical testing. How long is the statutory summary suspension?
- A Three months
- B One year
- C Three years
- D Six months
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B. One year
Refusing a chemical test brings a longer suspension (one year) than failing it (six months). By driving in Illinois you have already given implied consent to testing, and a refusal can also be used as evidence against you.
A first-time offender's chemical test shows a BAC of .08% or more. How long is the Illinois statutory summary suspension?
- A One year
- B Six months
- C One month
- D Three years
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B. Six months
A test showing .08% or more (or a THC level over the legal limit) brings a six-month statutory summary suspension for a first offender. This is an administrative suspension, separate from any DUI conviction in court.