According to Nolo, penalties for drunk driving vary from state to state, but can include such punishments as jail time, fines, license suspension, rehab or community service. In all states, a first-offense DUI is classified as a misdemeanor unless the driver killed or injured someone.
Many states require a minimum jail sentence of at least several days even on the first offense. There is also a good chance of a DUI offender having his or her license suspended for at least 90 days. Several states also require an ignition interlock that tests the driver's BAC before allowing the car to start. Repeat offenses, being a minor, having an open bottle of alcohol in your car and refusing to cooperate with police can all increase the severity of punishment in a DUI conviction, according to Nolo.