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Iowa Class C Knowledge Test Practice
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Safe & Responsible DrivingStandalone practice
What starting blood alcohol concentration (BAC) triggers Iowa’s separate driver-licensing rule for a driver under 21?
Correct answer: 0.02%.
Why
An under-21 driver may not operate with a BAC of 0.02% or more under the separate licensing rule. A licensing revocation does not prevent prosecution under applicable OWI provisions; a conviction-related revocation can supersede it. Do not equate every 0.02% result with the ordinary adult per-se OWI threshold.
Verified against Iowa Driver's License Manual · Drivers Under Twenty-One · p. 37
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