Utah’s New DUI Law: Extreme DUI and the Interdicted Person Rule Explained for 2026

Utah has always taken DUI enforcement seriously. But a new law that took effect on January 1, 2026, raises the stakes significantly for anyone convicted of a serious drunk driving offense. HB 437, known as the Interdicted Person Amendments, introduces a system that directly limits access to alcohol for individuals convicted of extreme DUI offenses, adding a visible, ongoing consequence that follows a person well beyond their court date.

If you are facing a DUI charge in Salt Lake City or anywhere in Utah, understanding what this law means for you is not optional, it’s necessary. The consequences are real, immediate, and difficult to undo without effective legal representation. Catherine Cleveland, Esq. is a Salt Lake City criminal defense firm that handles DUI cases and stays current on every change in Utah law that may affect our clients. 

What is an “Extreme DUI” in Utah?

A standard DUI in Utah involves operating a vehicle with a blood alcohol concentration of 0.05% or higher. An extreme DUI is a distinct and more serious classification that triggers mandatory consequences the court cannot waive or reduce on its own.

Under Utah Code 41-6a-501(1)(f), an extreme DUI is defined as a blood or breath alcohol level of 0.16% or higher, or a blood or breath alcohol level of 0.05% or higher in addition to any measurable controlled substance. That second prong is worth paying close attention to. 

You do not need to be highly intoxicated to face an extreme DUI charge. If you have any measurable amount of an unprescribed controlled substance in your system alongside alcohol levels above the legal limit, you are in extreme DUI territory.

Aggravating Factors

The controlled substance combination charge catches many people off guard. A driver who has consumed alcohol and has trace amounts of a recreational drug in their system, even from prior use, can be charged with an extreme DUI regardless of their actual level of impairment. This is one of the areas where early legal intervention can make the most meaningful difference.

The “Interdicted Person” Rule: More Than Just a Record

The most significant new feature of HB 437 is the interdicted person designation. An interdicted person is someone legally prohibited from purchasing alcoholic beverages during the interdiction period. Once designated, the individual must surrender their regular driver license or identification card and may apply for a special interdicted license or identification card.

This is not a note in a database somewhere. It is a physical change to the ID you carry every day.

The “No Alcohol Sale” License

The new identification card features a prominent red banner above the photograph stating “NO ALCOHOL SALE.” Every establishment licensed to sell alcohol in Utah, from grocery stores to restaurants to bars, must check identification for all alcohol purchases under the new 100% ID requirement, and the marked ID immediately signals the restricted status.

The practical consequences extend into employment, social situations, and any interaction where identification is required. Individuals with interdicted licenses may still enter bars and restaurants, but they cannot be served alcohol. The restriction applies to purchases, not physical presence, but the visible nature of the designation means that status becomes apparent in everyday situations.

Penalties for Extreme DUI in 2026

In 2026, Utah continues to impose some of the nation’s toughest penalties for extreme DUI offenses. Even a first-time conviction can lead to mandatory jail time, steep fines, and long-term restrictions on driving privileges. At Catherine Cleveland, Esq., we monitor changes to criminal offenses and their potential penalties to make sure our clients have access to the most accurate information possible.

Mandatory Jail or Home Confinement

An extreme DUI conviction carries a minimum of five days in jail, or alternatively two days in jail combined with 30 days of home confinement. These minimums are not subject to judicial discretion. The court cannot reduce them, which is why avoiding an extreme DUI conviction in the first place matters so much. At our firm, we know how to fight for charge reductions or alternative sentencing options to keep your record clean.

Ignition Interlock Device (IID)

A mandatory ignition interlock device must be installed on any vehicle operated by the convicted person for a minimum of one year following conviction. The cost of installation and monthly monitoring is borne by the defendant.

Fines and Treatment

A minimum fine of $700 applies, along with mandatory alcohol screening, assessment, and completion of an educational series. These requirements add both financial cost and time commitment to an already significant set of consequences.

The Interdiction Period

The court determines how long an individual must remain interdicted, generally basing the decision on the severity of the charges. As more DUI cases go through the court system, an attorney can provide more specific information about the average length of this restriction. 

After the legal interdiction period expires, individuals will need to apply for a duplicate license or identification card, as Utah will not automatically provide a new license free of the interdiction.

Why Was HB 437 Passed?

For families like that of Glendon Mitchell, the change marks a meaningful step toward preventing tragedies like the one that claimed the life of his grandson, 13-year-old Eli Mitchell, nearly four years ago. Eli was killed by a drunk driver leaving a bar, someone who Mitchell says should never have been able to purchase alcohol that day. The driver had a long history of DUI offenses prior to the fatal crash. HB 437 was championed by Representative Steve Eliason with the Mitchell family’s vocal support.

Rather than relying solely on after-the-fact punishment, Utah is now attempting to interrupt the cycle of alcohol access that enables repeat offenses.

How This Affects Your Legal Case

The stakes of an extreme DUI conviction are now higher than they were before 2026. A conviction does not just mean fines and possible jail time. It means a marked ID, a mandatory interlock device, and a visible restriction that follows you into grocery stores, restaurants, and daily life for a court-determined period. 

At Catherine Cleveland, Esq., we can potentially challenge the BAC evidence itself, negotiate charge reductions, or present mitigating factors that influence how the court handles your case within its available discretion.

Voluntary Interdiction

A person may voluntarily apply for an interdicted driver license or identification card. The interdicted license will need to be maintained for 30 days before reapplying for a non-interdicted license. This option exists for individuals who recognize they are struggling with alcohol use and want an external safeguard. It is a meaningful provision, and for the right person it can demonstrate good faith to a court or support a treatment-focused defense narrative.

How Catherine Cleveland, Esq. Can Help

The window between an arrest and a conviction is where outcomes are shaped, and the difference between an Extreme DUI conviction and a reduced charge can be the difference between carrying a marked ID for years and moving forward with your life.

When you work with Catherine Cleveland, Esq., you get a Salt Lake City criminal defense attorney who understands how HB 437 changes the overall shape of DUI defense and how to build a strategy that accounts for those changes. Our approach includes:

• Analyzing the BAC testing procedure and equipment for potential challenges to the evidence.
• Evaluating whether the traffic stop itself was legally justified.
• Identifying whether a charge reduction is available to avoid mandatory Extreme DUI consequences.
• Advising on voluntary interdiction where it may serve your broader legal interests.
• Representing you at every stage of the process, from arraignment through sentencing.

If you or someone you know is facing a DUI charge in Utah, contact us today to schedule your free consultation. The sooner you have experienced legal counsel involved, the more options remain on the table.