Although the most common driving under the influence offense is a standard motorist with a BAC of .08 or higher, there are some special circumstances where different BAC rates apply. For example, driving a school bus only requires a BAC of .02 or higher to be considered intoxicated.
BENTON, Pa. (AP) — Police say a northeastern Pennsylvania school bus driver who believed she was taking children to school when she actually should have been taking them home was driving drunk.
School Bus Driver Arrested for DUI
Similarly commercial drivers, underage drivers, and some others also have lower BAC limits. The criminal and civil sanctions, including loss of license, can be more significant for people in these categories.