Final Answer:
For a driver under 21, a Blood Alcohol Concentration (BAC) above 0.02% would lead to penalties.
Step-by-step explanation:
In many jurisdictions, there are stricter regulations regarding alcohol consumption for individuals under the age of 21. For drivers under 21, a BAC of 0.02% or higher is typically considered illegal, and it can result in penalties such as fines, suspension of driving privileges, mandatory alcohol education programs, or other legal consequences.
The lower BAC limit for underage drivers reflects a commitment to ensuring the safety of young and inexperienced drivers on the road by minimizing the influence of alcohol. This policy aims to discourage any alcohol consumption by individuals who are not legally allowed to drink.
It's essential for drivers, especially those under 21, to be aware of and adhere to these regulations to avoid legal consequences and, more importantly, to contribute to road safety.