The bill amends existing laws regarding impaired driving in Washington State, specifically addressing penalties for driving under the influence (DUI). Key changes include reducing the threshold for prior offenses from three to two within a seven-year period, which elevates subsequent offenses to a class B felony. It clarifies that individuals can be charged with DUI if their alcohol concentration is 0.08 or higher, or THC concentration is 5.00 or higher within two hours of driving. The legislation also establishes affirmative defenses for defendants who can prove they consumed alcohol or cannabis after driving, provided they notify the prosecution in advance.

Additionally, the bill introduces stricter penalties, including a mandatory minimum sentence of 120 days of imprisonment and fines ranging from $1,500 to $5,000 for those with an alcohol concentration of at least 0.15 or who refuse a breath test. It mandates the installation of ignition interlock devices for all vehicles operated by convicted individuals and outlines specific penalties for DUI offenses involving minor passengers. The bill emphasizes the importance of substance use disorder assessments and treatment, allowing courts discretion to impose probationary conditions. Furthermore, it establishes an effective date of January 1, 2026, for the changes, ensuring a timeline for compliance with the new legal standards.

Statutes affected:
Original Bill: 46.61.502, 46.61.504, 46.61.5055