Tennessee Ignition Interlock Device Laws

Tennessee uses criminal and administrative penalties to punish offenders who are convicted of DUI. The legal blood alcohol content (BAC) level in Tennessee is .08 percent, so any offender found with that level or above risks a conviction and penalties that include their driver’s license being revoked for a year. Some drivers may be eligible to regain their driving privileges with a restricted license if they install an ignition interlock device (IID). This guide will explain the interlock process in Tennessee.

CarTronics is an Intoxalock Service Center for the Installation, Removal and Recalibration of intoxalock devices.
Please click the links below to learn more about getting started with Intoxalock.

The TN Ignition Interlock Program
How do I get a restricted driver’s permit in Tennessee?
Intoxalock TN Interlock Devices
Ignition Interlock Cost in Tennessee
The TN Ignition Interlock Program