header bg

Question:

For a driver under 21 years of age, a blood alcohol concentration (BAC) of _______ or higher is evidence that he or she was driving under the influence of alcohol.

A 0.02%
Explaination

If chemical testing reveals that the blood alcohol concentration (BAC) of a driver under 21 years of age is 0.02% or higher, he or she will be charged with driving under the influence of alcohol. Most people will reach or exceed a BAC of 0.02% after consuming just one alcoholic drink. Hence, a BAC limit of under 0.02% is effectively zero tolerance. [Alcohol and the Law; Be in Shape to Drive; South Dakota Driver License Manual]