What is the legal BAC limit for driving for drivers 21 and older?

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Multiple Choice

What is the legal BAC limit for driving for drivers 21 and older?

Driving with a certain amount of alcohol in the blood is illegal for adults 21 and older, because that level is considered proof of impairment. The standard legal limit is 0.08% BAC or higher, which means if your BAC reaches or exceeds that threshold, you’re legally impaired to drive and can be charged with DUI regardless of how well you think you’re driving. It’s helpful to know that impairment can begin well below this level, and factors like body weight, how quickly you drank, and your metabolism all affect BAC, but 0.08% is the official cutoff for the general adult driver. The other options aren’t the typical limit for a 21+ driver: a BAC of 0.00% would mean no alcohol is allowed at all, and 0.02% or 0.05% are lower thresholds not used as the standard limit for the average adult driver in this context.

Driving with a certain amount of alcohol in the blood is illegal for adults 21 and older, because that level is considered proof of impairment. The standard legal limit is 0.08% BAC or higher, which means if your BAC reaches or exceeds that threshold, you’re legally impaired to drive and can be charged with DUI regardless of how well you think you’re driving. It’s helpful to know that impairment can begin well below this level, and factors like body weight, how quickly you drank, and your metabolism all affect BAC, but 0.08% is the official cutoff for the general adult driver. The other options aren’t the typical limit for a 21+ driver: a BAC of 0.00% would mean no alcohol is allowed at all, and 0.02% or 0.05% are lower thresholds not used as the standard limit for the average adult driver in this context.

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