According to Petrie-Norris, 35 other states also have permanent ignition interlock device requirements for all convicted drivers, including first-time drivers. State of play: Under current law, first-time offenders can be required to have an ignition interlock device installed in their cars for up to six months. Second-time DUI drivers are required to have an ignition interlock device for one year, and those convicted of subsequent DUI convictions can be required to have one for three years, according to the bill analysis. The big picture: Depending on the brand of ignition interlock device, it can cost DUI drivers $90 to $116 a month, since such devices are leased, not bought. Gavin Newsom signed into law, extended the sunset date on a pilot program under the California Department of Motor Vehicles that stipulates that first-time DUI offenders may be required to install ignition interlock devices in their cars.