DUI vs. DWI in Washington and Idaho: What's the Difference and What to Expect

If you’ve been arrested for impaired driving in Washington or Idaho, you may wonder: Is it a DUI or a DWI? While the terms are often used interchangeably, Washington and Idaho law officially recognizes DUI (Driving Under the Influence), and not DWI.

DUI in Washington State and Idaho
A person can be charged with DUI for operating a vehicle:

  • With a BAC of 0.08% or higher

  • While under the influence of alcohol, marijuana, or other drugs

  • If affected to any appreciable degree by intoxicants

Common Penalties for a First-Offense DUI:

  • Jail time: 1–364 days

  • Fines: $990.50 – $5,000

  • License suspension: 90 days

  • Ignition interlock device: 1 year

  • Alcohol/drug education programs

Aggravating Factors Include:

  • BAC over 0.15% in Washington and over 0.20% in Idaho

  • Minor in the vehicle

  • Prior DUI offenses

DWI: Misconception or Mislabeling?
Some states use DWI (Driving While Intoxicated) or OWI (Operating While Intoxicated), but Washington and Idaho only use DUI. However, people might use "DWI" informally.

What to Do If You're Arrested for DUI

  • Do not admit guilt or answer questions beyond your ID.

  • Request a criminal defense attorney immediately.

  • Comply with legal procedures but protect your rights.

Why You Need a Washington or Idaho DUI Attorney
DUI laws are complex, and the penalties can follow you for years. Duggan Law Offices, PLLC can challenge breathalyzer results, improper police conduct, and help you negotiate reduced charges or dismissals.

Conclusion
DUI charges in Washington and Idaho carry serious consequences—but a strong legal defense can make all the difference. Contact Duggan Law Offices, PLLC for an aggressive defense strategy.