← Missouri alcohol laws›DUI / DWI Limits

Missouri DUI / DWI Limits (2026)

Info: In Missouri the adult DWI limit is 0.08% blood alcohol, and drivers under 21 are held to the "abuse and lose" zero-tolerance limit of 0.02%.

InfoVerified May 31, 2026

Alcohol laws change at state, county and city lines.Track them in the free LawLert iPhone app: it alerts you when you cross into a state where they differ, or into a dry county where LawLert has the local rule, and when they change in your state. No account.Get the app

Official source: modot.org →

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

DUI / DWI Limits in states bordering Missouri

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

ArkansasInfo
Arkansas sets its DWI limit at an alcohol concentration of 0.08% or more in breath or blood for adults, 0.04% for commercial drivers, and 0.02% for anyone under 21 (an "Underage DUI"). …
Verified Jul 30, 2026 · Source: dps.arkansas.gov · Full Arkansas rule →
IllinoisInfo
In Illinois the DUI limit for drivers 21 and older is 0.08% blood alcohol, and drivers under 21 are held to a zero-tolerance limit of 0.02% — any trace can trigger license action.
Verified May 31, 2026 · Source: ilga.gov · Full Illinois rule →
IowaInfo
In Iowa the OWI limit for drivers 21 and older is 0.08% blood alcohol (Iowa Code 321J.2), and the limit for drivers under 21 is 0.02%.
Verified May 31, 2026 · Source: legis.iowa.gov · Full Iowa rule →
KansasInfo
In Kansas the DUI limit for drivers 21 and older is 0.08% blood alcohol, and the limit for drivers under 21 is 0.02%.
Verified May 31, 2026 · Source: kansashighwaypatrol.gov · Full Kansas rule →
KentuckyInfo
In Kentucky the adult per se limit is 0.08% blood alcohol (KRS 189A.010), commercial drivers are limited to 0.04%, and drivers under 21 are held to a zero-tolerance limit of 0.02%.
Verified May 31, 2026 · Source: apps.legislature.ky.gov · Full Kentucky rule →
NebraskaInfo
In Nebraska the adult DUI limit is 0.08% blood alcohol, and drivers under 21 are held to a zero-tolerance limit of 0.02%.
Verified May 31, 2026 · Source: nebraskalegislature.gov · Full Nebraska rule →
OklahomaInfo
In Oklahoma a DUI is 0.08% blood alcohol or higher for adults 21 and older (per se), drivers under 21 are held to zero tolerance for any measurable amount, and commercial drivers are limited to 0.04.
Verified May 31, 2026 · Source: oklahoma.gov · Full Oklahoma rule →
TennesseeInfo
In Tennessee 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: tn.gov · Full Tennessee rule →

Don't get caught off guardCross into a state where this law is different and the free iPhone app tells you what changed, even with the app closed. It also alerts you when a law you track changes where you live. No account.Get the free app

Track this law — get alerted when it changes

We watch the official sources behind Missouri alcohol rules. If a tracked rule changes, you get one short email — never more than one a week. Free, unsubscribe anytime.