DUI License Recovery in Montana
A first DUI in Montana results in a 6-month license suspension, but you may apply for a probationary license with an IID after serving a 45-day hard suspension. You must complete the ACT program (chemical dependency assessment and PRIME for Life education), file SR-22 insurance for 3 years, and pay a $200 reinstatement fee. Penalties include up to 6 months in jail and $600-$1,000 in fines.
Last updated:
Overview
Montana prohibits driving under the influence (DUI) with a BAC of 0.08% or higher for standard drivers, 0.04% for commercial drivers, and 0.02% for drivers under 21. Montana uses a 10-year lookback period for determining second and third offenses, but once a driver has three or more prior DUI convictions, all previous convictions count regardless of when they occurred. A fourth or subsequent DUI is a felony. A BAC of 0.16% or higher triggers enhanced penalties even on a first offense. Montana also requires completion of the Assessment, Course, and Treatment (ACT) program for all DUI offenders as a condition of license reinstatement.
Quick Answer
A first DUI in Montana results in a 6-month license suspension, but you may apply for a probationary license with an IID after serving a 45-day hard suspension. You must complete the ACT program (chemical dependency assessment and PRIME for Life education), file SR-22 insurance for 3 years, and pay a $200 reinstatement fee. Penalties include up to 6 months in jail and $600-$1,000 in fines.
Suspension Rules
| Offense | Suspension |
|---|---|
| 1st Offense | 6-month license suspension. Eligible for a probationary license with IID after serving 45 days of hard suspension. If BAC was 0.16% or higher, enhanced suspension conditions apply. |
| 2nd Offense | 1-year license suspension (within 10 years of first offense). Must serve 45 days of hard suspension before eligibility for a probationary license with IID. Mandatory IID for the full restriction period. |
| 3rd Offense | 1-year license suspension (within 10 years). Must serve 90 days of hard suspension before eligibility for a probationary license with IID. Extended IID and monitoring requirements. |
| Refusal | Montana's implied consent law means refusing a chemical test results in an automatic 6-month license suspension for a first refusal and 18 months for a second refusal, separate from any criminal DUI penalties. The refusal can also be used as evidence against you in court. |
Ignition Interlock Device (IID) Requirements
Montana requires IID installation for all DUI offenders seeking a probationary license during the suspension period. For first offenders, the IID is required for the duration of the probationary license period (minimum 6 months). Second and subsequent offenders face longer IID requirements. Drivers with a BAC of 0.16% or higher face enhanced IID requirements regardless of offense number.
SR-22 Insurance
SR-22 is a certificate of financial responsibility filed by your insurance company with the Montana MVD confirming you carry at least the state minimum liability coverage ($25,000/$50,000 bodily injury, $20,000 property damage). If your SR-22 lapses, your insurer notifies the MVD and your license is automatically re-suspended.
Reinstatement Process
Fee: $200 reinstatement fee for DUI-related suspensions | Timeline: Probationary license available after 45 days of hard suspension for first and second offenses (90 days for third offense). Processing time varies; plan for 1-3 weeks for MVD to process the application. Full unrestricted license restored after IID period is completed and all conditions are met.
Serve Hard Suspension Period
Serve the mandatory hard suspension period: 45 days for a first offense, 45 days for a second offense, or 90 days for a third offense. No driving privileges are available during this period.
Complete the ACT Program
Complete the Assessment, Course, and Treatment (ACT) program, which includes a chemical dependency evaluation by a Licensed Addiction Counselor at a state-approved provider and the PRIME for Life education course (12+ hours covering DUI law, substance effects, risk reduction, and safe driving).
Install Ignition Interlock Device
Have an IID installed by a Montana-approved vendor on every vehicle you own or operate. Obtain proof of installation documentation.
Obtain SR-22 Insurance
Purchase SR-22 insurance from a licensed Montana insurer. The insurer will file the SR-22 certificate directly with the Montana MVD.
Pay Reinstatement Fee and Apply
Pay the $200 reinstatement fee and submit your reinstatement application to the Montana Motor Vehicle Division (MVD) along with proof of IID installation, SR-22 filing, and ACT program completion.
Receive Probationary License
Once approved, you receive a probationary license that restricts you to driving vehicles equipped with an IID. Maintain the IID and SR-22 for the required duration without violations.
DUI Penalties
| Offense | Penalties |
|---|---|
| 1st Offense | Up to 6 months in jail, $600-$1,000 in fines, 6-month license suspension, mandatory ACT program, IID on probationary license. BAC of 0.16% or higher triggers enhanced penalties. |
| 2nd Offense | 7 days to 1 year in jail (mandatory minimum), $1,200-$2,000 in fines, 1-year license suspension, mandatory IID, mandatory ACT program with treatment component. Must be within 10 years of first offense. |
| 3rd Offense | 30 days to 1 year in jail (mandatory minimum), $2,500-$5,000 in fines, 1-year license suspension, mandatory IID, intensive treatment with probation monitoring. Must be within 10 years. |
| Felony DUI | Fourth or subsequent DUI (felony): 13 months to 5 years in state prison (often in a treatment facility), $5,000-$10,000 in fines, extended license suspension, and long-term IID requirements as a condition of any driving privileges. All prior DUI convictions count regardless of when they occurred once you reach the felony threshold. |
BAC limit: 0.08% for standard drivers; 0.04% for commercial vehicle operators; 0.02% for drivers under 21. A BAC of 0.16% or higher triggers enhanced penalties including longer IID requirements and potential additional jail time. | Lookback period: 10 years for second and third offenses. However, once a person has accumulated three or more prior DUI convictions, all previous DUI convictions count toward penalty enhancement regardless of when they occurred, effectively creating a lifetime lookback for felony DUI charges.
Hardship / Restricted License
Montana offers a probationary license (also called a hardship or restricted license) that allows DUI offenders to drive for essential purposes such as employment, education, and medical treatment during the suspension period. The probationary license requires an IID installed on all vehicles the driver operates.
Edge Cases
What happens if my BAC is 0.16% or higher in Montana?
A BAC of 0.16% or higher triggers enhanced penalties even on a first offense. This includes mandatory minimum jail time of 24 consecutive hours, higher fines, longer IID requirements, and more intensive treatment through the ACT program. You may also face a longer hard suspension period before becoming eligible for a probationary license.
Can I get a DUI on a boat or ATV in Montana?
Yes. Montana's DUI laws apply to the operation of any vehicle, including boats, ATVs, and snowmobiles. A boating under the influence (BUI) conviction carries similar penalties and can count as a prior offense for future DUI charges.
What is Montana's implied consent law?
By driving on Montana roads, you automatically consent to chemical testing (breath or blood) if lawfully arrested for DUI. Refusing a test results in a separate administrative license suspension of 6 months (first refusal) or 18 months (second refusal), and the refusal can be used as evidence of guilt in court.
Does a Montana DUI affect my CDL?
Yes. A DUI conviction in any vehicle (personal or commercial) results in a 1-year CDL disqualification for a first offense and a lifetime CDL disqualification for a second offense. The commercial BAC limit is 0.04%, half the standard limit.
Frequently Asked Questions
- How long after a Montana DUI can I drive again?
- For a first DUI, you must serve a 45-day hard suspension period with no driving at all. After that, you can apply for a probationary license by installing an IID, filing SR-22 insurance, and enrolling in the ACT program. Most first-time offenders can be back on the road (with IID restrictions) within about 6-8 weeks of the suspension start date.
- How much does a Montana DUI cost in total?
- A first DUI in Montana typically costs $5,000-$10,000+ total when factoring in fines ($600-$1,000), court costs, attorney fees ($2,000-$5,000+), ACT program fees ($200-$500), IID costs ($950-$1,350/year), SR-22 insurance increase ($500-$1,600/year), and the $200 reinstatement fee.
- What is the ACT program in Montana?
- ACT stands for Assessment, Course, and Treatment. It is a mandatory program for all DUI offenders in Montana that includes a chemical dependency evaluation by a Licensed Addiction Counselor and the PRIME for Life education course (12+ hours). Depending on the evaluation results, additional treatment may be required before license reinstatement.
- Can I refuse a breathalyzer in Montana?
- You can refuse, but Montana's implied consent law means refusal results in an automatic 6-month license suspension (18 months for a second refusal), separate from any DUI criminal penalties. The refusal can also be used as evidence against you in court, and you may still be compelled to provide a blood sample via a warrant.
- Will a first-offense Montana DUI result in jail time?
- A first-offense DUI can result in up to 6 months in jail, though many first-time offenders receive probation with no jail time (or minimal jail time) unless aggravating factors are present. A BAC of 0.16% or higher carries a mandatory minimum of 24 consecutive hours in jail.
Video Guides
Take Action — Direct Links
- Montana Motor Vehicle Division — Suspensions & Reinstatements
Official Montana MVD page with suspension and reinstatement requirements, forms, and contact information.
- Intoxalock — Montana IID Requirements
IID provider page with Montana-specific requirements, installation locations, and cost information.
- DrivingLaws.org — Montana DUI Laws
Comprehensive overview of Montana DUI laws including penalties by offense level.
- Montana Legislature — DUI Statutes (Title 61, Chapter 8)
Official Montana Code Annotated for DUI statutes and related motor vehicle laws.