Missouri DUI Laws
Missouri DUI Defense
What you're facing, what the deadlines are, and the questions your attorney needs to answer, specific to Missouri (MO) law.
BAC Limit
0.08
Enhanced BAC
0.15
Higher penalties above this
Lookback Period
5 years
Prior offenses count within
15 days-Day DMV Hearing Deadline
In Missouri, you have 15 days days from your arrest to request an administrative DMV hearing. Miss this deadline and your license suspension goes into effect automatically , even if the criminal case is later dismissed.
First Offense Penalties in Missouri
Implied Consent & Test Refusal
Like all 50 states, Missouri has an implied consent law, by driving on Missouriroads, you've already agreed to submit to a chemical test (breath, blood, or urine) if an officer has probable cause to believe you're impaired.
Refusal Penalty
1-year license revocation
Missouri-Specific Detail
Missouri offers a Substance Abuse Traffic Offender Program (SATOP) that can reduce license suspension. The 15-day administrative hearing request window applies to both test failures and refusals.
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Other Missouri defense topics
Facing a different charge in Missouri? Penalty ranges, enhancements, and defense questions for related crimes:
Important: This page provides general legal information about Missouri DUI laws as of the date of publication. Laws change frequently. This is not legal advice. For guidance specific to your case, speaking with a Missouri-licensed attorney is one option, or take the free Masked Researcher’s First Read to see where your case stands.