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Michigan Operator Knowledge Test Practice
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Passing target: 8 correct signs and 24 correct rules (TLA practice targets)
Safe & Responsible DrivingStandalone practice
What is Michigan’s current ordinary adult per-se blood-alcohol threshold, apart from separate impairment offenses?
Correct answer: 0.08 percent.
Why
The current ordinary per-se alcohol concentration is 0.08 grams per 100 milliliters of blood, commonly written 0.08 percent BAC. The statute also specifies equivalent breath and urine measures. A driver can be unlawfully impaired below that concentration; reaching the threshold is not the only way to violate impaired-driving law.
Verified against What Every Driver Must Know and cited current authority · Legal blood alcohol limit · p. 28, 29
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