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 Florida, the primary statute governing the operation of vehicles while under the influence of drugs or alcohol is Florida Statute 316.193, which defines the offense of Driving Under the Influence (DUI). This law makes it illegal to operate a motor vehicle with a blood alcohol concentration (BAC) of 0.08% or higher, or while one's normal faculties are impaired by alcohol or controlled substances. The term DUI is commonly used in Florida, and there are no separate offenses for DWI, OUI, or OWI in the state's statutes. For waterways, Florida Statute 327.35 outlines Boating Under the Influence (BUI), which prohibits operating a vessel while under the influence of alcoholic beverages, chemical substances, or controlled substances when affected to the extent that the person's normal faculties are impaired. Penalties for DUI and BUI in Florida can include fines, imprisonment, community service, probation, and mandatory substance abuse courses, among others, and can be more severe for repeat offenders or if the incident involved property damage, injury, or death.