At which BAC will a driver first begin to experience driving impairment, such as decreased motor skills and reaction time?

A blood alcohol concentration (BAC) of 0.02% is significant because this is the threshold at which many individuals start to feel the effects of alcohol on their motor skills and reaction time. At this level, motor coordination can begin to decline, and the ability to perform tasks that require quick reactions, such as responding to sudden obstacles while driving, is noticeably affected. Research supports that even modest amounts of alcohol can impair judgment and decrease cognitive function, making driving unsafe.

As BAC increases, the impairment becomes more pronounced, leading to greater risks while operating a vehicle. Understanding that impairment can begin with lower BAC levels is crucial for both drivers and those studying DUI prevention, as it emphasizes the importance of responsible drinking and driving practices.