DUI and impaired-driving laws by state

LegalLimit.com is a reference site for US state DUI and impaired-driving laws. Each state page covers BAC limits, penalty tiers, license consequences, ignition-interlock rules, and implied-consent rules, with primary-source citations on every numeric fact.

10 states currently published, growing toward all 50 states and the District of Columbia.
Every numeric fact on each state page traces to a primary-source statute or official agency page.

Browse all currently published states, or pick a state below.

How this site is authored

LegalLimit.com is an independent reference. State pages are authored under a multi-pass editorial process that prefers primary-source citations and omits claims that cannot be traced to a primary source. Read more about our editorial process.

This site provides reference information, not legal advice. If you face a charge, license suspension, court date, or any similar issue, contact a licensed attorney who practices in your jurisdiction. See our full disclaimer for details.