In Hawaii, drivers who are under the legal drinking age (21 years old) are prohibited from operating a vehicle with any measurable amount of alcohol in their system. In other words, Hawaii has a zero-tolerance policy for underage drinking and driving.
The consequences of an underage DUI depend on the driver's record and age and the circumstances of the case. However, the possible penalties are generally as follows:
Within these ranges, the judge gets to decide what specific penalties to impose.
Underage drivers who are caught operating a vehicle with a blood alcohol concentration (BAC) of .08% or more or while under the influence of (impaired by) drugs or alcohol face the standard DUI penalties. Depending on the circumstances, someone convicted of a standard DUI (also called "operating a vehicle under the influence of an intoxicant" or "OVUII") could be looking at fines, jail time, and license suspension.
Regardless of the charge, it's always best to talk to an experienced DUI attorney if you've been cited for driving under the influence. A qualified lawyer can tell you how the law applies to your situation and help you decide on the best course of action.