Who sets how long you need a ignition interlock device?

The duration for which you need an ignition interlock device is typically determined by the court or the state’s motor vehicle department, based on the specifics of your DUI or DWI offense. Factors influencing this decision can include the severity of the offense, prior offenses, and compliance with court-ordered programs. Some states have mandatory minimum periods for installation, while others allow for discretion based on individual circumstances. Always check your local laws for specific requirements.