prior to the passage of a new law, individuals whose license has been suspended for 12 or 18 months due to a DUI, had to serve the entire duration of that suspension prior to driving. As stated in other blogs, anyone who is convicted of driving while the license suspended due to DUI conviction can face mandatory time in prison. 

Due use to a new law, those whose licensed have been suspended for either 12 or 18 months can get their license before that time if the person serves half the time of their suspension and agrees to equip their vehicle with an ignition interlock.