Bill > HB2191

This bill modifies existing Missouri law regarding ignition interlock devices for individuals convicted of intoxication-related traffic offenses. Specifically, the bill changes the language from courts "may" require to courts "shall" require the installation of an ignition interlock device (a breathalyzer-like device installed in a vehicle that prevents the car from starting if the driver has been drinking) for anyone found guilty of an intoxication-related traffic offense. The bill mandates that the device must be installed for a minimum of six months after the person's driver's license is reinstated. Additionally, when a court grants a limited driving privilege to someone convicted of an intoxication-related traffic offense, the use of an ignition interlock device will be a mandatory condition. The bill emphasizes that these requirements are in addition to existing penalties and provisions in Missouri law, and individuals who fail to comply with the ignition interlock device requirement will be subject to penalties outlined in section 577.599.

https://house.mo.gov/Bill.aspx?bill=HB2191&year=2026&code=R