What are the Illinois DUI limits?
In Illinois, your DUI status depends on your license and age. Drivers under the age of 21 are considered DUI if they have a blood alcohol content (BAC) exceeding 0.00%. Commercial driver’s licenses are DUI if they exceed 0.04%, and other drivers are DUI if their BAC is 0.08% or over. However, an Illinois officer may arrest you for DUI if your blood alcohol content is 0.04% or more. BACs of 0.16 or more face especially high penalties in Illinois.