The Oregon State Police is the regulatory authority of ignition interlock devices, interlock service technicians and interlock service centers throughout Oregon State. The ignition interlock program of the Oregon State Police is operated out of the Patrol Services Division and consists of law enforcement officers and support staff dedicated to interlock compliance and public safety.
A breath alcohol ignition interlock device (BAIID or simply IID) is attached to the ignition of a motor vehicle and is designed to prevent a motor vehicle from being operated by a person who has consumed an alcoholic beverage. When properly installed and calibrated, the IID will prevent a driver from starting a motor vehicle if the device detects a breath alcohol concentration (BrAC) above the prescribed setpoint.