Final answer:
Drivers under 21 are subject to a zero tolerance policy for Blood Alcohol Concentration (BAC) in the United States, with penalization starting at 0.00-0.02% BAC, depending on the state.
Step-by-step explanation:
For drivers under the age of 21 in the United States, the Blood Alcohol Concentration (BAC) that will result in penalization is usually set at 0.00-0.02%, depending on the state. This strict standard is due to the National Minimum Drinking Age Act of 1984 that requires states to enforce a minimum drinking age of twenty-one or risk losing federal highway funds.
The organization Mothers Against Driving (MADD) played a crucial role in advocating for these stricter laws to prevent underage driving and protect youths. Drivers under 21 with a BAC higher than the state's zero tolerance limit will face penalties, including license suspension, fines, and possibly mandatory education programs or jail time.
According to the information given, the National Minimum Drinking Age Act of 1984 required states to raise their minimum drinking age to twenty-one or face a reduction in federal highway funds. .
This means that for a driver under the age of 21, any blood alcohol concentration (BAC) would have them penalized, as it is illegal for individuals under 21 to consume alcohol. Most US states consider a BAC of 0.08% by volume to be legally , but for individuals under 21, any BAC would result in penalties.