In the District of Columbia, there are three types of "Drunk Driving" offenses.

The first is Driving While Intoxicated (DWI). The government is required to prove, through the use of blood or urine tests, that a driver operated, or had control of, a motor vehicle while having a blood alcohol concentration of 0.08 grams per deciliter of blood. The government is not required to prove that driver was actually suffering any type of impairment.

Driving Under the Influence (DUI) is a charged that requires the prosecution to prove that the defendant operated a motor vehicle while under the influence of intoxicating alcohol or drugs and that his or her ability to drive was impaired. The government can use a variety of methods including observation, Field Sobriety Test scores, or blood or urine tests.

Operating While Intoxicated (OWI) requires the government to prove that the defendant operated a motor vehicle while under the influence of any amount of alcohol but is not required to show that the defendant was impaired in any way. This charge carries the lightest penalty. It is also not recognized in many other states, so it may not result in a loss of license for some out of state drivers. For those drivers, they are not allowed to drive in the District of Columbia. For a DC license holder, all driving privileges may be suspended