Drivers under 21 years of age are considered to be driving under the influence if their blood alcohol concentration (BAC) is:

.02% or higher.
.08% or higher.
.10% or higher.
.05% or higher.
Explanation

Drivers that are below the age of 21 can be convicted of driving while under the influence if they are caught with a BAC of .02% or higher. Just one alcoholic drink can affect your driving ability, particularly your judgement, reaction time, vision and coordination. Your chances of being involved in a crash are seven times greater if you drive after drinking than if you drive sober.

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