Who has to install one in Utah
| Your situation | Interlock | How long | Law |
|---|---|---|---|
| DUI conviction, 21 or older at arrest | Required | 18 months | Utah Code 41-6a-518.22 |
| DUI conviction, under 21 at arrest | Required | 3 years | Utah Code 41-6a-518.23 |
| Second DUI within 10 years of a prior conviction | Court orders it | Longer than first offense, exact time not stated | Utah Code 41-6a-518 (eff. 5/3/2023 version; check for supersession)4 |
| Refused the chemical test | Qualifies for restriction | Not stated | Utah Code 41-6a-518.25 |
| Driving without a device after conviction | Privilege revoked | 1 year | Utah Code 41-6a-518.26 |
A judge can order an interlock in other cases too. Your court order or DMV letter is what binds you.
Where each company can install in Utah
You'll go back to the same company's locations for service for the whole order, so check that one is close to where you live and work before you book.
Locations as each company lists them on its own locator (Smart Start, Intoxalock, LifeSafer, Low Cost Interlock, RoadGuard), pulled Oct 2026. Some shops serve more than one company. Alcohol Detection Systems doesn't publish a locator we could read.
Interlock companies approved in Utah
- In Utah
- 18 service locations listed
- Nationwide
- On 37 of 44 state lists
- 12 months, filed fees
- $1,427–$1,552
- App rating
- 1.7 from 899 (App Store)
LifeSafer
Listed as “LifeSafer (#1A)”- In Utah
- 15 service locations listed
- Nationwide
- On 34 of 44 state lists
- 12 months, filed fees
- $1,205–$1,355
Smart Start
Listed as “Smart Start (1A)”- In Utah
- 11 service locations listed
- Nationwide
- On 40 of 44 state lists
- 12 months, filed fees
- $1,460–$1,510
- App rating
- 2.0 from 113 (App Store)
- In Utah
- 3 service locations listed
- Nationwide
- On 19 of 44 state lists
- 12 months, filed fees
- $1,215–$1,365
- App rating
- 1.4 from 11 (App Store)
RoadGuard
Listed as “RoadGuard Interlock”- In Utah
- 1 service locations listed
- Nationwide
- On 28 of 44 state lists
- 12 months, filed fees
- $1,273
ALCOLOCK
Listed as “Alcolock USA”- Nationwide
- On 12 of 44 state lists
Also on the Utah list
- Simple Interlock
From the state's approved list (read it). Use a company on this list, or the install won't count. 12-month figures are lease, install and removal from each company's filed or published fee schedule, not Utah prices; see how we add them up.
How much an interlock costs in Utah
Estimated total for your order
Lease times the months you pick, plus install, removal and any enrollment fee, from each company's filed or published schedule (New York filing, Feb 2025; National schedule, Sept 2026; New York filing, 2021; New York filing, Feb 2021; New York filing, Apr 2025). Utah prices can differ; calibration visits and lockout fees come on top.
If you can't afford it
If you are on probation, you can file an affidavit of indigency, and if the court finds you indigent it may waive costs or let you pay in installments. The provider covers the costs the court waives.
Financial help in other statesThe rules in Utah
- Program run by
- The Utah Driver License Division (DLD) certifies interlock systems and licenses the providers and installers who work on them.7
- License you get
- Your license carries an ignition interlock restriction, which makes you an interlock restricted driver. You must not drive any vehicle, including a motorcycle, without a device installed.8
- Approved providers
- The DLD certified list includes Lifesafer, Smart Start, Alcolock USA, Intoxalock, LowCost Interlock, RoadGuard Interlock and Simple Interlock.9
- Help paying
- If you are on probation, you can file an affidavit of indigency, and if the court finds you indigent it may waive costs or let you pay in installments. The provider covers the costs the court waives.10
- Getting it removed
- If you take the device out early, your license is suspended again until a device is installed and an additional reinstatement fee is paid. The provider must electronically notify the DLD when the device is installed and when it is removed.11
- Violations
- Breath violations and failing to calibrate or monitor the device on schedule (every 60 days under the statute) each add a 60-day extension for violations since May 3, 2023.6
- Camera
- Devices need a camera under a rule that took effect March 12, 2024, with compliance required by October 31, 2024.12
- Driving for work
- If you drive an employer-owned vehicle during your job, you may be allowed to do so without a device when your employer verifies it. If you have no vehicle, you can use the Employment Exemption Affidavit from the DLD.13
- Out-of-state license
- If you are a non-resident without a vehicle in Utah, you can clear the suspension by paying the reinstatement fee and showing proof that you are licensed in your home state.14
- Medical exemption
- A medical condition that affects your ability to use a device can qualify you for review, which involves spirometry and the Medical Advisory Board. If it is approved, you are not eligible for DUI Early Reinstatement.15
Questions about interlocks in Utah
How long do you have to have an interlock in Utah?
It depends on your age when you were arrested. If you were 21 or older, the DLD page says 18 months. If you were under 21 and convicted of DUI, it says 3 years. A repeat DUI within 10 years of a prior conviction means a longer period, which the page does not put a number on.2
What happens if you take the interlock out early in Utah?
Your license is suspended again until a device is installed and you pay an additional reinstatement fee. The provider also has to electronically notify the Driver License Division when a device is installed and when it is removed, so the removal is reported to the state.11
What happens if you fail a breath test or miss a calibration in Utah?
Each violation adds 60 days to your restriction, a rule that has applied since May 3, 2023. Violations include breath violations and failing to calibrate or monitor the device, which the statute sets at every 60 days. Driving without a device after a conviction can lead to your driving privilege being revoked for 1 year.6
Can you get help paying for an interlock in Utah?
If you are on probation, you can file an affidavit of indigency with the court. When the court finds you indigent, it may waive costs or allow you to pay in installments, and the interlock provider covers the costs of any waiver the court grants.16
Can you drive a work vehicle without an interlock in Utah?
You may be able to. An employer-owned vehicle driven in the course of your job can be allowed without a device when your employer provides verification. If you have no vehicle, the DLD has an Employment Exemption Affidavit you can use instead.13
Do you need an interlock in Utah if you live in another state?
A non-resident who does not own a vehicle in Utah can clear the suspension by paying the reinstatement fee and showing proof of being licensed in their home state, so a device is not part of that path.14
Related guides
InterlockCompare is independent and doesn't make, sell or install interlocks. Not legal advice.