Ignition Interlock Device (IID)

Age Requirement

If you are under 21 at the time of arrest and convicted of a DUI, you must have an IID for three years.

Age Requirement

If you are 21 and older at the time of arrest and convicted of a DUI, you must have an IID for 18 months.

Additional Time

Subsequent offenses have longer IID restriction requirement time frames.

What is an ignition interlock device?

A breath alcohol ignition interlock device (IID) is a constant monitoring device that, when installed in a motor vehicle, prevents the motor vehicle from being started without first sampling the operator’s breath alcohol concentration. If the operator’s breath alcohol concentration is greater than a predetermined concentration level, the device prevents the motor vehicle from being started. When a driver is ignition interlock restricted, they must not drive any vehicle, including motorcycles, without an ignition interlock device installed.

The driver license record is updated to show the ignition interlock restriction, and the driver is notified by mail of the restriction. Law enforcement has access to the ignition interlock restriction and will issue a citation when they make contact with a driver who is driving a vehicle without an ignition interlock device installed.

Ignition interlock-restricted drivers may qualify for an ignition interlock medical exemption. The driver must have a medical condition that affects the person's ability to use the ignition interlock device (IID) and provide a deep lung sample.

To determine eligibility for the exemption, a driver must:

Provide medical documents concerning the condition(s).
Complete a spirometry test.
Have your information reviewed by the medical advisory board.

If approved by the medical advisory board the driver:

Must meet all license reinstatement requirements, including reinstatement fees.
Complete a driver review (written knowledge and driving skills test with a hearing officer.)
Submit subsequent medical forms, if needed.
Additional license restrictions (speed, time of day, distance, etc.) could be added to the driver license following the driver review.

A driver who is approved for an interlock medical exemption will not be eligible for early reinstatement.

Request an exemption packet or for more information contact:

Email at [email protected]
Phone at 801.963.7325

If convicted for operating or being in actual physical control of a motor vehicle in Utah without an ignition interlock device, your driving privilege will be revoked for a period of one year from the conviction date. An ignition interlock device suspension may be cleared by one of the following:

Payment of reinstatement fee and receipt of electronic notification from an ignition interlock system provider showing proof of the installation of an ignition interlock system on your vehicle or the vehicle you will be operating.
Payment of a reinstatement fee and, if you do not own a vehicle or will not be operating a vehicle owned by another individual, electronic verification that you do not have a vehicle registered in your name in Utah, and receipt of Ignition Interlock Employment Exemption Affidavit.
Payment of a reinstatement fee and, if you are not a resident of Utah, verify you do not own a vehicle in Utah by electronic verification that you are licensed in another state of residence, or you are in the process of obtaining a license in your state of residence.

If the IID is removed prior to the ending date of the ignition interlock restriction period, the license will be re-suspended until an IID is installed and an additional reinstatement fee is paid.

**Effective May 3, 2023, upon receipt by the division of any notice of a breath violation or failure to calibrate/monitor the ignition device, results in a 60-day extension to the ignition interlock restricted driver for each violation.

The following is a list of offense types resulting in an ignition interlock-restricted driver status:

A conviction for driving under the influence (DUI) (UCA 41-6a-502.)
A conviction for an interlock-restricted driver violation (UCA 41-6a-518.2.)
A second or subsequent driving under the influence offense (DUI), 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 ten years (UCA 41-6a-501.)
Refusal to submit to a chemical test resulted in an administrative revocation (UCA 41-6a-520.)
Automobile homicide (UCA 76-5-207.)
A conviction for a refusal to submit to a chemical test (UCA 41-6a-521.1)