There are various criminal charges for operating a motorized, electric, or otherwise-powered transportation device on public roadways or waterways while under the influence of or intoxicated by drugs or alcohol, as defined by state law. DUI, DWI, OUI, OWI, and BUI—driving under the influence, driving while intoxicated, operating under the influence, operating while intoxicated, and boating under the influence—are some of the common names for such impaired-driving or impaired-operating criminal offenses.

Laws regarding the definitions and names of such alcohol and drug-related driving offenses vary from state to state and are usually located in a state’s statutes—often in the penal code or criminal code.

In Oklahoma, the laws concerning the operation of vehicles while under the influence of alcohol or drugs are primarily found in Title 47 of the Oklahoma Statutes, which covers motor vehicles. The state uses the terms 'Driving Under the Influence' (DUI) and 'Actual Physical Control' (APC) to refer to offenses involving operating or being in control of a motor vehicle while impaired. A DUI is charged when a person operates a motor vehicle with a blood alcohol concentration (BAC) of 0.08% or higher, or while under the influence of drugs. Oklahoma also has a 'zero tolerance' policy for drivers under the age of 21, meaning any detectable amount of alcohol can result in a DUI charge for these individuals. For boating, the term 'Boating Under the Influence' (BUI) is used when someone operates a watercraft while impaired. Penalties for these offenses can include fines, imprisonment, driver's license revocation, and mandatory use of ignition interlock devices. The specific statutes detailing these offenses and penalties are found in sections 11-902, 11-902a, and 11-902b for DUI and APC, and in section 8-902 for BUI.