How to Use the DUI Blood Alcohol Penalty Guide
Unlike Korea's single national standard, DUI law in the United States is set state by state, so exact penalties vary widely. Most states, however, share a common structure: a 0.08% BAC legal limit for standard drivers age 21 and older, a much lower zero-tolerance threshold (commonly 0.02%) for drivers under 21, and a 0.04% limit for commercial drivers operating under a CDL.
This guide enters your BAC and driver type, then shows a representative penalty tier based on patterns common across many states — from a standard first-offense DUI to an aggravated "high-BAC" DUI, which usually triggers longer license suspension, mandatory ignition interlock devices, and steeper fines.
Treat every number here as an illustrative reference, not legal advice for a specific state. Actual license suspension lengths, fine amounts, and jail exposure differ significantly by state and depend on factors like prior offenses, whether anyone was injured, and whether you refused a breath or blood test.
Frequently Asked Questions
No. Even below the per-se legal limit, alcohol impairs reaction time and judgment, and you can still be charged with impaired driving if an officer determines you're affected. The safest choice is never to drive after drinking.
Yes. In every state, a second or subsequent DUI carries substantially longer license suspension, higher fines, and a greater chance of jail time than a first offense. Exact increases depend on your state's law.