Ignition Interlock Devices in Utah

When is an IID Authorized?

Utah has authorized the use of ignition interlock devices (IIDs) for certain drivers convicted of alcohol related driving offenses.

When are IIDs Authorized?

Utah courts authorize the installation and maintenance of an IID as a condition of reinstatement of driving privileges for:

  • a conviction for driving under the influence (DUI)
  • a conviction for an interlock restricted driver violation
  • a second or subsequent driving under the influence offense (DUI), or alcohol related reckless offense, impaired driving offense, metabolite offense or driving with a measurable amount of controlled substance in the body and causing serious bodily injury or death within 10 years
  • refusal to submit to a chemical test  

 What’s an IID?

An IID connects to the vehicle dashboard and the driver breaths into the device prior to starting the vehicle. If the IID detects a BAC above the limit programmed the device (typically calibrated at .02%), then the engine won’t start. Read more about ignition interlock devices (IIDs).

Where Can I Find an IID Provider?

IID providers are approved for installation throughout Utah. You can find a list of approved IID providers at the Utah Public Safety website.

Who Pays For it?

In almost all cases the driver who has been convicted of a DUI/DWI pays for the installation and lease of the ignition interlock system. You can expect to pay up to $100 for installation (although some companies offer free installation) and between $75-$120 per month for the lease. This is a rough estimate and your price may be higher or lower depending on your location.


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