Driver Undergoing Field Sobriety Test by Police Officer at Night

Understanding DUI Laws in the United States

The U.S. legal BAC limit is 0.08% for drivers 21+, with a 0.04% limit for commercial drivers. States enforce DUI laws and can add stricter rules, penalties, and drug-impaired driving standards beyond the federal baseline. This article explains federal versus state DUI frameworks, BAC thresholds, and common enforcement and penalty differences. Overview of Federal and […]

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