In Indiana, law enforcement primarily use the term OWI (operating a vehicle under the influence) which is the same as a DUI (driving under the influence) in other states. How much do you have to drink (BAC*) for a OWI/DUI in Indiana? Under 21
The state of Indiana punishes offenders in a first DUI (referred to as an OWI -- operating while intoxicated -- in Indiana) via both criminal penalties (jail time, fines) and administrative action (license suspension).
Indiana classifies the first violation of operating a motor vehicle (including a motorboat) while intoxicated (OVWI or OWI) as a misdemeanor with penalties varying depending on the specific class of misdemeanor.
A third DUI conviction in Indiana within ten years is a felony. In the Indiana Code, the phrase "Operating While Intoxicated" (OWI) is used to describe driving under the influence (DUI). People charged with a DUI/OWI face administrative penalties and criminal penalties.