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 Alaska, operating a vehicle while under the influence of alcohol or drugs is a serious offense, commonly referred to as DUI (Driving Under the Influence). Alaska Statute 28.35.030 outlines the legal limits and penalties for DUI offenses. A person is considered to be driving under the influence if they have a blood alcohol concentration (BAC) of 0.08% or higher, or if they are operating a vehicle, aircraft, or watercraft while impaired by alcohol or controlled substances to any degree. Penalties for DUI in Alaska can include fines, imprisonment, license revocation, and the requirement to use an ignition interlock device. Additionally, Alaska has an implied consent law, meaning that drivers must submit to a chemical test if suspected of DUI, and refusal to do so can result in penalties. Boating under the influence (BUI) is also addressed under Alaska law, with similar prohibitions and penalties for operating watercraft while intoxicated.