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Illinois DUI / DWI Limits (2026)

Info: 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.

InfoVerified May 31, 2026

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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.

Official source: ilga.gov →

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