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Louisiana DUI / DWI Limits (2026)

Info: In Louisiana the adult per se limit is 0.08% blood alcohol (R.S. 14:98), drivers under 21 are held to a zero-tolerance limit of 0.02%, and commercial drivers are limited to 0.04%.

InfoVerified May 31, 2026

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Official source: legis.la.gov →

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DUI / DWI Limits in states bordering Louisiana

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 →
MississippiInfo
In Mississippi the adult per se limit for DUI is 0.08% blood alcohol, drivers under 21 are held to a zero-tolerance limit of 0.02%, and commercial drivers are limited to 0.04%.
Verified May 31, 2026 · Source: dor.ms.gov · Full Mississippi rule →
TexasInfo
In Texas the limit for adults is 0.08% blood alcohol (DWI, Penal Code 49.04), and drivers under 21 face a zero-tolerance rule: any detectable alcohol is an offense (Alcoholic Beverage Code 106.041).
Verified May 31, 2026 · Source: statutes.capitol.texas.gov · Full Texas rule →

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