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Washington DUI / DWI Limits (2026)

Info: In Washington the per se limit for adults is 0.08% blood alcohol (RCW 46.61.502), and drivers under 21 are held to a zero-tolerance limit of 0.02%.

InfoVerified May 31, 2026

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In Washington the per se limit for adults is 0.08% blood alcohol (RCW 46.61.502), and drivers under 21 are held to a zero-tolerance limit of 0.02%. A 2026 bill to lower the adult limit to 0.05% passed the Senate but did not pass the House, so the limit remains 0.08%.

Official source: app.leg.wa.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

DUI / DWI Limits in states bordering Washington

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IdahoInfo
In Idaho the DUI limit for drivers 21 and older is 0.08% blood alcohol (I.C. 18-8004), and the limit for drivers under 21 is 0.02%.
Verified May 31, 2026 · Source: legislature.idaho.gov · Full Idaho rule →
OregonInfo
In Oregon a DUII is 0.08% blood alcohol or higher for adults 21 and older (per se), drivers under 21 are held to zero tolerance for any amount, and commercial drivers are limited to 0.04.
Verified May 31, 2026 · Source: oregonlegislature.gov · Full Oregon rule →

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