Did you know that the penalties for drinking and driving are more stringent for youth? If you are under the age of 21, you can be arrested for having a blood alcohol content (BAC) of .02 or more (The BAC threshold for adults is .08). If you are driving under the influence, you can be arrested with a BAC level lower than .02. If you are between the ages of 13 and 17 and convicted of a first time alcohol or firearm violation, or age 13 through 20 and convicted of a first time drug violation, your driving privileges will be revoked for one year or until age 17, whichever is longer.