At what blood alcohol concentration (BAC) does driving become illegal for drivers under 21?

In Maine, for drivers under the age of 21, the legal limit for blood alcohol concentration (BAC) is set at 0.02%. This stricter standard reflects the state’s commitment to promoting safety among young and inexperienced drivers, recognizing that alcohol can have a more pronounced effect on younger individuals. The law aims to discourage drinking and driving among those who are not legally allowed to consume alcohol and to protect all road users.

Setting the threshold at 0.02% emphasizes the importance of sober driving and acknowledges that even small amounts of alcohol can impair judgment and reaction times. This is particularly significant for teenagers and young adults who may be less experienced on the road. A BAC of 0.02% can be reached with just a single drink for many individuals, so the law serves as a deterrent against drinking and driving among the youth. Understanding this context is crucial for young drivers, as it highlights the serious consequences of even minimal alcohol consumption while operating a vehicle.