All states have laws criminalizing the operation of a vehicle while intoxicated. In most states, this offense is called DUI, an acronym for driving under the influence. Some states use different references for the offense, such as OWI (operating while intoxicated) or DWI (driving while intoxicated).
While intoxication can result from various substances, alcohol intoxication is the most widespread. The federal limit for operating a vehicle on public roads is 0.08 percent BAC (Blood Alcohol Concentration). However, states have the prerogative of setting their own limits as long as it stays within the federal limit. All states follow the federal standard except Utah, which adopted a 0.05 percent BAC limit in 2018.