A misdemeanor DUI is a criminal charge for driving under the influence of alcohol, drugs, or both when the offense is treated as a lower-level crime than a felony, even though the penalties can still hit hard.

In plain English, it means the state says a driver was impaired or had an illegal alcohol level, but the case does not rise to felony DUI. In Washington, DUI is usually charged under RCW 46.61.502 and is commonly a gross misdemeanor, not a simple misdemeanor. That still carries jail exposure, fines, license consequences, ignition interlock requirements, probation, and a permanent criminal record. A first-time case can still wreck a job, especially for people who drive for work, hold commercial licenses, or need security clearance. For workers in tech, logistics, or manufacturing around Seattle or Bellevue, one conviction can trigger employer discipline fast.

The practical damage goes beyond criminal court. A misdemeanor DUI can blow up an injury claim because insurers love using intoxication as a weapon. If a crash victim was drunk or high, the defense will push comparative fault and argue the injured person caused or worsened the wreck. In a work-related injury, suspected impairment can also trigger fights over benefits, termination, and whether the injury happened in the course of employment.

Washington also has an administrative license suspension process through the Washington State Department of Licensing, separate from the criminal case. Beat one and lose the other if the defense is sloppy.