For individuals under 21, what is the legal BAC limit?

For individuals under the age of 21, the legal Blood Alcohol Content (BAC) limit is set at 0.02. This lower limit reflects the intention to discourage underage drinking and driving, as younger drivers are generally less experienced, and alcohol consumption can significantly impair their driving abilities and judgment. The 0.02 limit serves as a way to promote safer driving practices among younger drivers and is part of a broader "zero tolerance" policy that aims to prevent alcohol-related accidents and injuries in this age group.

The rationale behind having a specific BAC limit for underage drivers is based on research indicating that any amount of alcohol can negatively affect a person's ability to operate a vehicle, especially for those who are not of legal drinking age. As a result, authorities have implemented stricter regulations to help protect all road users and reduce accidents involving young and inexperienced drivers.