The BAC threshold is reduced to .04% if the licensee is driving a commercial vehicle and .02% for drivers who are under 21 years old. Commercial drivers may face more severe penalties than those listed below, while the penalties for an underage DUI (with a BAC of at least .02% but less than .08%) are generally less serious than those for a regular DUI.
| 1st Offense | 2nd Offense | 3rd Offense | |
| Jail | Up to 6 months (10 days to 1 year if BAC .20% or greater) |
10 days to 1 year (30 days to 5 years if BAC .20% or greater) | 30 days to 10 years |
| Fines | Up to $1,000 (up to $2,000 if BAC .20% or greater) |
Up to $2,000 (up to $5,000 if BAC .20% or greater) | Up to $5,000 |
| License Suspension | 90 to 210 days (1 year if BAC .20% or greater) |
At least 1 year (1 to 5 years if BAC .20% or greater) | 1 to 5 years |
| Ignition Interlock Device | 1 year | At least 1 year | At least 1 year |
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