IRD – Interlock Restricted Driver

As provided in Utah Motor Vehicle Code § 41-6a-518.2, an “interlock restricted driver” may not operate a motor vehicle without an ignition interlock system. Utah law provides harsh penalties and punishments that can apply after a DUI conviction for the interlock restricted driver.

The ignition interlock device (IID) requires the driver to submit a breath sample with no traces of alcohol before the vehicle’s engine will start. The driver must also provide additional breath samples periodically while the car is in operation.

An ignition interlock restricted driver cannot legally operate any motor vehicle that is not equipped with an ignition interlock device (IID). Driving as an ignition interlock restricted driver, without an IID is a Class B misdemeanor offense. If you are convicted of this offense, it can lead to an additional three-year restriction on your driving privileges. 

Attorney for the IRD Restricted Driver in Salt Lake City, UT

If you are charged with driving without an ignition interlock system as an IRD, then contact an experienced criminal defense attorney at Brown, Bradshaw & Moffat, LLP in Salt Lake City Utah. 

The attorneys at Brown, Bradshaw & Moffat, LLP represent clients charged with a host of driving and traffic-related crimes including driving on a revoked or suspended license, or driving as an alcohol restricted driver.

Our criminal defense attorneys also represent clients accused of driving in violation of a restricted alcohol license. We represent clients throughout Salt Lake City, UT and the surrounding areas in Summit County, Tooele County, Utah County, and Weber County.

Call (801) 532-5297 to discuss your case today.

Back to top

IRD Provisions under Utah Law

The length of time that an IID must be installed will depend on a number of factors, including:

  • 18 months IRD for 1st DUI (§41-6a-502) if over 21;
  • Three years IRD for a combination of two of the following within ten years:
    • DUI (§41-6a-502);
    • Refusal to Submit to Chemical Test (§41-6a-521);
    • Controlled Substance / Metabolite (§41-6a-517);
    • Alcohol-Related Reckless Driving (§41- 6a-512 – only violations prior to July 1, 2008);
    • Impaired Driving (§41-6a-502.5);
    • Driving with Controlled Substance/Bodily Injury or Death (§58-37-8(2)(g)); or
    • Automobile Homicide (§76-5-207).
  • Six years IRD for Felony DUI (§41-6a-502); 
  • Ten years IRD for Automobile Homicide (§76-5-207);

If all offenses are for Controlled Substance/Metabolite convictions, IRD does not apply.

This article was last updated on Friday, March 9, 2018.