It is illegal for a person 21 years of age or older to operate a vehicle with a blood alcohol concentration (BAC) of _____ or higher.

0.03%
0.08%
0.10%
0.05%
Explanation

It is illegal for any person 21 years of age or older to operate a vehicle with a blood alcohol concentration (BAC) of 0.08% or higher. Alcohol impairs a person's ability to safely operate a vehicle, so the legal limit of 0.08% or higher is set to ensure that all drivers are not impaired while operating a vehicle.

Answer Statistics

🟡 This question is moderately difficult21.9% of our users answer it incorrectly.

Other questions in the same category: Alcohol and Drug Effects on Driving
This question appears in the following DMV practice tests: