Car permit · Alcohol and drugs

Starting at what blood alcohol concentration (BAC) is it illegal for you to drive?

Correct answer: 0.08% if you are 21 or older.

Answer options

  1. A0.08% if you are 18 to 20 years old
  2. B0.08% if you are 21 or older Correct
  3. C0.06% if you are 21 or older

Why

Drivers who are 21 or older break the law once their BAC hits 0.08%. Anyone under 21 is held to a zero-tolerance limit far below that, so 0.08% is not their cutoff, and 0.06% is not the standard adult limit.

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