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Washington DUI Laws

Washington DUI Defense

What you're facing, what the deadlines are, and the questions your attorney needs to answer, specific to Washington (WA) law.

BAC Limit

0.08

Enhanced BAC

0.15

Higher penalties above this

Lookback Period

7 years

Prior offenses count within

20 days-Day DMV Hearing Deadline

In Washington, you have 20 days days from your arrest to request an administrative DMV hearing. Miss this deadline and your license suspension goes into effect automatically , even if the criminal case is later dismissed.

First Offense Penalties in Washington

Jail TimeUp to 364 days (mandatory 24 hours if BAC 0.15+)
Fines$940 – $5,000
License Suspension90 days
Ignition InterlockRequired for 1 year

Implied Consent & Test Refusal

Like all 50 states, Washington has an implied consent law, by driving on Washingtonroads, you've already agreed to submit to a chemical test (breath, blood, or urine) if an officer has probable cause to believe you're impaired.

Refusal Penalty

1-year license revocation

Washington-Specific Detail

Washington has among the highest base fines for first-offense DUI ($940 minimum). The state's 20-day DOL hearing request window is unique. Washington also requires a mandatory alcohol/drug assessment.

Is your Washington DUI defense on track?

The Masked Researcher’s First Read checks 10 critical defense behaviors specific to DUI cases. Takes 2 minutes. Instant results.

Take the Free Defense Score

DUI Defense Playbook$127

26 questions that change how your next attorney meeting goes, a case stage roadmap, red flag checklist, and a case progress scorecard. Instant PDF download — calibrated for Washington DUI defendants.

Other Washington defense topics

Facing a different charge in Washington? Penalty ranges, enhancements, and defense questions for related crimes:

Important: This page provides general legal information about Washington DUI laws as of the date of publication. Laws change frequently. This is not legal advice. For guidance specific to your case, speaking with a Washington-licensed attorney is one option, or take the free Masked Researcher’s First Read to see where your case stands.