Document the Implementation and Operation Processes of Interlock Systems

Some jurisdictions are interested in using interlocks, but there may be barriers to their use. Even where interlocks are in widely used, there are often issues. This study will document, step-by-step, the various ways interlock systems are currently initiated, implemented, and working in the United States, and how these processes could work better, easier and more efficiently. The study will examine the entire interlock process – from advocacy of a law or implementation of a program, to adding additional sanctions for offenders who fail their breath test or tamper with the interlock. This information will be of use to those entities interested in implementing and improving interlock programs across the country. The study objectives are to document the implementation and operational processes of interlock programs, identify loopholes and weaknesses of interlock programs, and identify possible fixes for these issues.


    • English


    • Status: Active
    • Funding: $50750
    • Contract Numbers:


    • Sponsor Organizations:

      National Highway Traffic Safety Administration

      1200 New Jersey Avenue, SE
      Washington, D.C.  United States  20590
    • Project Managers:

      Wochinger, Kathryn

    • Performing Organizations:

      Traffic Injury Research Foundation (TIRF)

      Ottowa, Ontario  Canada 
    • Start Date: 20130801
    • Expected Completion Date: 20180930
    • Actual Completion Date: 0
    • USDOT Program: Behavioral Safety Research
    • Subprogram: Alcohol Impaired Driving

    Subject/Index Terms

    Filing Info

    • Accession Number: 01625572
    • Record Type: Research project
    • Source Agency: National Highway Traffic Safety Administration
    • Contract Numbers: DTNH22-12-H-00371
    • Files: RiP, USDOT
    • Created Date: Feb 6 2017 3:58PM