Ignition Interlock

The Tennessee Department of Safety and Homeland Security, TDOSHS, is a staunch advocate of strong D.U.I. enforcement and highway safety. In a continuing effort to save lives, the TDOSHS is taking steps to ensure that Tennessee’s Ignition Interlock Program is effective and operating efficiently.

If you have questions about your ignition interlock requirements under T.C.A. 55-10-417, or 55-10-425, please contact the Tennessee Highway Patrol Ignition Interlock Program at (615) 743-4960, Safety.Interlock@tn.gov, or visit the Ignition Interlock Program Help Center.

If you have questions about your revoked or restricted Tennessee Driver License that do not pertain to ignition interlock, visit the Reinstatements section of our website or call (866) 903-7357.

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