Instead of using the term DUI, Wisconsin uses OWI, which means “Operating While Intoxicated.” It is basically the same as a DUI and is treated the same in court. Under Wisconsin law, a driver is considered to be operating while intoxicated if: the driver is under the influence of an intoxicant so that his ability to operate a vehicle was impaired; the driver has an alcohol concentration in excess of what the law allows; or the driver has any amount of a restricted controlled substance in this blood.
Now when determining what the law allows for a driver’s blood alcohol content depends on how many offenses they have had. For example, the prohibited alcohol content (PAC) in Wisconsin for a first, second, and third offenses is .08. This limit generally decreases for problem drivers. For fourth and subsequent offenders the PAC is 0.02.
It is important to know what your blood alcohol content was in relation to the law and to understand what the prohibited alcohol content is for you based on your past offenses.