Overview
Washington DUI Laws
Washington DUI law at a glance
Sourced from the Washington code and state agency sites. Verify current text before relying on it.
- Offense name
- DUI (Washington)
- Controlling statute
- RCW 46.61.502
- Implied consent
- RCW 46.20.308
- Per se BAC limit
- 0.08 (0.04 CDL, 0.02 or lower under 21)
- Licence hearing deadline
- 7 days after arrest
- Prior-offense lookback
- 7 years
- First-offense fine
- $990–$5,000
- First-offense jail exposure
- up to 364 days
- Licence suspension
- 3 months
- Ignition interlock
- Required on a first offense in most cases
- Trial court
- the District Court or Municipal Court
- High-risk filing
- SR-22 for 3 years
A first offense requires interlock and an alcohol/drug assessment.
What RCW 46.61.502 actually says
A charge in Washington is brought under one or more of these subsections.
- RCW 46.61.502(1)(a) — driving with an alcohol concentration of 0.08 or higher within two hours of driving.
- RCW 46.61.502(1)(b) — driving with a THC concentration above the per se limit within two hours of driving.
- RCW 46.61.502(1)(c)-(d) — driving while under the influence of or affected by liquor, cannabis or any drug.
- RCW 46.61.502(1)(e) — driving under the combined influence of alcohol and any drug.
Penalties & Fines
When DUI Becomes a Felony
Court Costs & Fees
Legal Process
A DUI case in Washington is heard in the District Court or Municipal Court, and it runs on two tracks at once: the criminal case and a separate licence action you must challenge within 7 days of arrest.
- 1Arrest, booking and the chemical test — Officers arrest for DUI under RCW 46.61.502 and request a breath, blood or urine test under Washington's implied-consent section, RCW 46.20.308. Refusing carries its own licence penalty, separate from the criminal charge.
- 2Licence action — request a hearing within 7 days — A formal hearing to contest the suspension is requested on the department's DUI hearing request form. You have 7 days from arrest to demand the administrative hearing with Washington State Department of Licensing; miss it and the suspension takes effect automatically, whatever happens in court.
- 3Arraignment in the District Court or Municipal Court — The charge is read, a plea is entered and conditions of release are set in the District Court or Municipal Court. Washington hears misdemeanor and gross misdemeanor DUI in its courts of limited jurisdiction — county district courts and city municipal courts — while felony DUI, such as a fourth offense or vehicular assault or homicide, is tried in Superior Court.
- 4Pretrial motions and discovery — Defence counsel obtains the police report, test records and calibration or maintenance logs, and may move to suppress the stop or the test result. Courts of limited jurisdiction are courts of record for DUI, and their decisions can be appealed to Superior Court.
- 5Diversion or treatment disposition — Deferred Prosecution under RCW ch. 10.05 is available for alcohol- and drug-related traffic offenses, DUI included.
- 6Plea or trial, then sentencing — A first DUI conviction carries a fine of $990–$5,000, jail exposure up to 364 days, a licence suspension of 3 months, an ignition interlock requirement. Prior offenses within 7 years push the case into the enhanced-penalty range. A first offense requires interlock and an alcohol/drug assessment.
- 7Appeal — Courts of limited jurisdiction are courts of record for DUI, and their decisions can be appealed to Superior Court.
- 8Reinstatement — An Ignition Interlock Driver License allows restricted driving during suspension or revocation. Washington requires a SR-22 certificate of financial responsibility for 3 years before the licence is restored.
Washington hears misdemeanor and gross misdemeanor DUI in its courts of limited jurisdiction — county district courts and city municipal courts — while felony DUI, such as a fourth offense or vehicular assault or homicide, is tried in Superior Court. Appeals from district or municipal court go to Superior Court, then to the Washington Court of Appeals.
Filing and procedure in Washington
- Courts of limited jurisdiction are courts of record for DUI, and their decisions can be appealed to Superior Court.
- The Administrative Office of the Courts provides statewide case search and filing infrastructure.
- Deferred Prosecution under RCW ch. 10.05 is available for alcohol- and drug-related traffic offenses, DUI included.
- Felony DUI under RCW 46.61.502 is filed and tried in Superior Court under county felony procedure.
Court tiers, appeal deadlines and diversion rules for every Washington county are listed on the Washington court reference.
Defense Tactics & How to Get a DUI Dismissed
Post-Conviction Class Requirements
License Reinstatement Process
Ignition Interlock Device (IID)
Car Insurance After a DUI
Rehab & Treatment Programs
CDL & Commercial Driver Consequences
Underage / Zero-Tolerance Laws
Drug DUI (DUID)
Expungement & Record Sealing
Frequently Asked Questions
Local Resources for Washington
These are the offices and helplines most Washington drivers need in the weeks after an arrest. Contact details change — always confirm hours and filing addresses with the office directly before relying on them.
Courts, licensing and statutes
- Washington court directory
Official judiciary directory of the courts, judges and clerk offices in every county.
- Washington State Department of Licensing
The administrative action is governed by RCW 46.20.308, the implied consent law, and follows a test failure or refusal.
- RCW 46.61.502 — Washington DUI statute
The offense, BAC limits and sentencing ranges in the state's own words.
Treatment and support
- SAMHSA treatment locator (findtreatment.gov)
Federal directory of licensed alcohol and substance-use treatment providers, searchable by ZIP code.
- SAMHSA national helpline — 1-800-662-4357
Free, confidential, 24/7 referral service for treatment and support groups.
- 988 Suicide & Crisis Lifeline
Call or text 988 for immediate mental-health crisis support.
- NHTSA impaired-driving research
Federal crash and enforcement data behind the statistics cited on this page.
Primary Sources & Legal References for Washington
Every claim on this page is grounded in the primary sources below — the official Washington statutes, the WA driver-licensing agency, and the state judiciary's court directory. Use these links to verify current language directly with the issuing authority.
- WA DMV / DOL admin hearing windowWA DOL — admin hearing (7-day request)Typically 7–30 days from arrest
- First-offense penalty scheduleGHSA — State alcohol-impaired driving laws
- SR-22 / FR-44 financial responsibilityInsurance Information Institute — SR-22 explained
- Washington trial courts (case filings, dockets)Washington Judiciary — official court directory (courts.wa.gov)Use the official directory to confirm the courthouse, address and docket access.
- WA driver-licensing agency (license suspension & reinstatement)Official WA DMV/driver services (dol.wa.gov)
- Washington official code / statutesFull Washington statutes as published by the state (app.leg.wa.gov)
Washington DUI sources
- bestcriminallawyertricities.com/blog/understanding-washingtons-dui-laws-key-defenses-to-consider
- emeraldcitylawgroup.com/criminal-defense/dui-lawyer/washington-bac-limit
- wtsc.wa.gov/wp-content/uploads/dlm_uploads/2023/01/WTSC_.05-BAC-fact-sheet_Dec-2022.pdf
- youtube.com/watch
- alcohol.org/dui/bac-limits
- jennygraham.houserepublicans.wa.gov/2026/01/22/video-the-pros-and-cons-of-lowering-the-bac-limit-rep-jenny-graham-on-hb-2362
Sources retrieved live by our Perplexity-powered research pipeline. Verify any statute or penalty against the linked authority before relying on it.
What to do in the next 24–72 hours
- Request your DMV / ALR hearing. In Washington you have 7 days from arrest to request the hearing — miss it and the suspension takes effect automatically.
- Save every document. Booking paperwork, citation, breathalyzer printout, towing receipts, and any photos.
- Don't post about your case online. Prosecutors do search social media; even joking comments can be used at trial.
- Get a local DUI attorney. A WA attorney familiar with the local prosecutors and judges is the single biggest factor in outcomes.
- Estimate your costs and exposure. Use our calculators below to plan financially.
Estimate your blood alcohol level by drinks, weight and time. Compare against the 0.08 WA limit.
See your likely fine, court costs, IID, insurance and attorney fees for a DUI in Washington.
DUI glossary
- BAC
- Blood Alcohol Concentration. The legal threshold is 0.08 in most states.
- Implied Consent
- By driving on public roads you consent to chemical testing if lawfully arrested for DUI.
- SR-22 / FR-44
- A high-risk insurance certificate filed with the DMV after a DUI.
- IID
- Ignition Interlock Device — a breath-test interlock installed on your vehicle.
- Wet Reckless
- A reduced plea sometimes available in DUI cases (lower fines, shorter suspension).
- ALR Hearing
- Administrative License Revocation hearing with the DMV. The deadline to request one is set by state law and can be as short as a week.
- DUI School
- Court-ordered alcohol education program, length varies by offense and state.
- Per Se DUI
- DUI based solely on BAC ≥ 0.08, regardless of impairment evidence.
- FST
- Field Sobriety Tests — walk-and-turn, one-leg-stand, HGN.
- Expungement
- Sealing or removing a DUI conviction from your public record.
Talk to a WA DUI attorney
Most DUI defense lawyers offer a free initial consultation. A local attorney familiar with Washington courts can review your arrest, identify procedural defenses (illegal stop, faulty FSTs, breathalyzer calibration), and negotiate a reduced charge such as wet reckless. Don't represent yourself.
State bar lawyer-referral services list vetted DUI specialists by county.