What is the legal blood alcohol concentration (BAC) limit for drivers over 21 in Illinois?

In Illinois, the legal blood alcohol concentration (BAC) limit for drivers over the age of 21 is set at 0.08%. This means that if a driver’s BAC is at or above this level, they are legally considered impaired and can be arrested for driving under the influence (DUI). The BAC limit is established to help ensure road safety and to reduce the incidence of alcohol-related accidents.

While lower BAC levels, such as 0.02% or 0.05%, may apply to certain situations like zero tolerance for drivers under 21 or for commercial drivers, the standard legal limit for regular drivers over the age of 21 remains at 0.08%. The enforcement of this limit is a crucial aspect of promoting responsible drinking and driving behaviors within the community.