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.
