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Practice quizzes / Illinois Driver's License Written Knowledge Test / Question 101486
Practice question

In Illinois, the legal blood alcohol concentration (BAC) limit for drivers 21 and older is:

  1. 0.05%
  2. 0.08%
  3. 0.10%
  4. 0.15%

Answer: B — 0.08%

The correct answer is shown above. Try the full quiz for additional practice.

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