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Washington DUI Laws: What Drivers Need to Know

Driving under the influence is taken seriously in Washington. Washington DUI laws impose strict penalties on drivers who operate a vehicle while impaired by alcohol or drugs. Understanding these laws can help you avoid serious consequences and make informed decisions.

What Is Considered a DUI in Washington?

Under state law, a person may be charged with DUI if they operate a vehicle:

  • With a blood alcohol concentration (BAC) of 0.08% or higher
  • While under the influence of alcohol, drugs, or a combination of both
  • With a THC concentration of 5.00 ng/mL or higher

Even if your BAC is below the legal limit, you can still face charges if your ability to drive is affected. Washington’s DUI statutes focus on impairment—not just numbers.

DUI Penalties in Washington

Penalties depend on several factors, including prior offenses and BAC level. Consequences may include:

  • Jail time
  • Fines and court costs
  • License suspension
  • Ignition interlock device requirements
  • Mandatory alcohol or drug treatment

Washington’s DUI laws increase penalties for repeat offenses. A second or third conviction can result in significantly harsher consequences.

Administrative License Suspension

In addition to criminal penalties, drivers may face administrative action through the Department of Licensing (DOL).

If you:

  • Fail a breath or blood test, or
  • Refuse testing

Your license can be suspended—even before your court case is resolved.

You have only 7 days to request a hearing to challenge this suspension.

Implied Consent Law

Washington follows an implied consent rule. This means that by driving in the state, you agree to submit to breath or blood testing if lawfully arrested for DUI.

Refusing a test can lead to:

  • Automatic license suspension
  • Use of the refusal as evidence in court

This rule is a critical part of how DUI enforcement works in Washington.

DUI and Drug Impairment

DUI charges are not limited to alcohol. Drivers may also be charged for impairment caused by:

  • Prescription medications
  • Marijuana
  • Illegal drugs

Law enforcement officers often rely on field sobriety tests and trained drug recognition experts (DREs) to determine impairment.

Long-Term Consequences of a DUI

A DUI conviction can affect more than just your driving privileges. It may also impact:

  • Employment opportunities
  • Insurance rates
  • Professional licenses
  • Criminal record

Washington DUI laws are designed to deter impaired driving and protect public safety, which is why the consequences can be long-lasting.

Defending a DUI Charge

Every DUI case is unique. Common defense strategies may involve:

  • Challenging the traffic stop
  • Questioning the accuracy of BAC testing
  • Examining police procedures

An experienced attorney can evaluate the facts and determine the best approach.

Contact Blanford Law

If you are facing DUI charges, it is important to understand your rights and options.

Contact Blanford Law today at ken@blanfordlaw.com or 253-720-9304 for guidance on your legal matter.

Additional Resources