Idaho DUI / DWI Limits (2026)

DUI / DWI Limits in states bordering Idaho

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

• MontanaInfo

  In Montana the adult DUI limit is 0.08% blood alcohol, with an aggravated offense at 0.16%, and drivers under 21 are held to a zero-tolerance limit of 0.02%.

  Verified May 31, 2026 · Source: dojmt.gov · Full Montana rule →

• NevadaInfo

  In Nevada the adult DUI limit is 0.08% blood alcohol, or 0.04% for commercial drivers, and drivers under 21 are held to a zero-tolerance limit of 0.02%. (NRS 484C.110.)

  Verified May 31, 2026 · Source: leg.state.nv.us · Full Nevada 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 →

• UtahInfo

  In Utah the per se limit for adults is 0.05% blood alcohol — the lowest in the nation (Utah Code 41-6a-502) — and drivers under 21 are under a "Not-a-Drop" zero-tolerance rule covering any measurable alcohol.

  Verified May 31, 2026 · Source: highwaysafety.utah.gov · Full Utah rule →

• WashingtonInfo

  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%.

  Verified May 31, 2026 · Source: app.leg.wa.gov · Full Washington rule →

• WyomingInfo

  In Wyoming the per se limit for adults is 0.08% blood alcohol, and drivers under 21 are held to a zero-tolerance limit of 0.02%.

  Verified May 31, 2026 · Source: wyoleg.gov · Full Wyoming rule →