State of the Practice of State-Managed Ignition Interlock Device (IID) Programs

This project documented the state of the practice of interlock programs across the country by surveying breath alcohol ignition interlock device programs and populating an online inventory on key areas, including legislation, program funding, data management, vendor oversight, interlock technology and monitoring of driver compliance.

Download Report (2023)

Traffic Tech (2023)


Research Status
Research Topic
Alcohol-impaired driving
Research Year