Vermont DUI Ignition Interlock Requirements (2026): Elective vs. Mandatory, Costs & All 6 Providers
Vermont’s ignition interlock program has two distinct modes. For a first DUI offense, an IID is elective — install one and you can drive during your 90-day suspension on a Restricted Driver’s License (RDL). For a second or subsequent offense, an IID is required for license reinstatement. Vermont approves all six major national providers and offers a 50% cost reduction for drivers receiving qualifying state benefits. Here’s how both paths work.
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Vermont DUI interlock requirements at a glance
| Offense term | DUI (Driving Under the Influence) — 23 V.S.A. 1201 |
| All-offender? | No — IID is elective for a 1st offense (to drive during suspension via RDL). Mandatory for 2nd and 3rd+ offense license reinstatement. |
| 1st offense — IID elective | Any first alcohol-related DUI suspension qualifies. Apply immediately (no wait); refusal-only suspensions wait 30 days. IID + RDL allows driving throughout the 90-day suspension. |
| 1st offense — IID term | 90 days violation-free operating under the interlock RDL. Mirrors the standard 90-day 1st-offense suspension period. |
| 1st offense refusal suspension — IID term | 6 months on the interlock RDL (longer refusal suspension period) |
| 2nd offense — IID required for reinstatement | 18 months on an ignition interlock RDL/certificate — OR 1 year if subject to the one-year hard suspension (23 V.S.A. 1209a) |
| 3rd+ offense — IID required for reinstatement | 3 years on interlock RDL/certificate plus Total Abstinence Program approval (underlying revocation is lifetime; driver must document 3 years of abstinence) |
| 50% cost reduction | DMV-required 50% reduction in IID installation, monthly maintenance, and removal costs for drivers receiving 3SquaresVT, LIHEAP (fuel assistance), or Reach Up benefits |
| Violation extensions | See violation table below — ranges from +60 days (missed service) to +6 months (BAC 0.08%+ retest, tampering, circumvention, or driving non-IID vehicle) |
| Removal requirement | Do NOT remove until DMV mails a written RDL release letter. All reinstatement conditions must be met and no pending violation extensions. Apply on form VL-15. |
| Vermont DMV fees | Restricted license: $125/year (renewed annually). License reinstatement: $96 (general DMV fee; confirm DUI-specific total with DMV). |
| SR-22 required? | Yes — minimum 3 years on file with DMV; must be filed by the insurance company directly (not the agent) (23 V.S.A. 800/801/804) |
| Who approves providers | Vermont DMV — dmv.vermont.gov — IID |
| Governing law | 23 V.S.A. 1213; 1209a; 1205; 1201; 800/801/804 |
First offense: elective IID to drive during suspension
Vermont’s first-offense IID program is straightforward: install an IID, apply for a Restricted Driver’s License, and drive throughout your 90-day suspension instead of sitting it out. Key details:
- Who qualifies: Any first-offense alcohol-related DUI suspension. No BAC minimum — even a 0.08% first offense qualifies.
- When to apply: Immediately after your suspension begins (DUI conviction). Refusal-only suspensions must wait 30 days.
- IID term: 90 days of violation-free driving under the RDL (matching the standard 90-day suspension). Violations extend the term.
- Cost of electing: Standard market IID rates apply. 50% discount if you receive 3SquaresVT, LIHEAP, or Reach Up benefits.
For most working drivers, the IID is clearly worth it — the device costs less than 90 days of lost wages or transportation costs for most people.
Second and subsequent offenses: mandatory for reinstatement
For a second DUI offense, the IID is not elective — it’s required as a condition of license reinstatement. The 18-month interlock RDL/certificate period under 23 V.S.A. 1209a must be served before full reinstatement. For a third or subsequent offense, the underlying revocation is lifetime — the driver must document 3 years of abstinence through the Total Abstinence Program and serve 3 years on an interlock RDL/certificate before petitioning for reinstatement.
50% cost reduction for 3SquaresVT, LIHEAP, and Reach Up recipients. Vermont DMV requires providers to reduce IID installation, monthly maintenance, and removal costs by 50% for drivers receiving any of these three state benefit programs. To access this: show documentation of your active benefit enrollment to the provider before signing. This is a mandatory reduction — providers cannot refuse. The 50% reduction applies to all device costs, making Vermont one of the most accessible IID programs for low-income drivers.
Violation extension schedule
Vermont has a detailed, tiered violation extension schedule:
| Violation | Extension |
|---|---|
| 3 or more startup attempts at BAC 0.04%+ | +3 months |
| Failed rolling retest at BAC 0.04–0.07% | +3 months |
| Failed rolling retest at BAC 0.08%+ | +6 months |
| Tampering with device | +6 months |
| Driving a non-IID-equipped vehicle | +6 months |
| Circumvention (each occurrence) | +6 months each |
| Missed service/calibration visit | +60 days |
Do NOT remove the device until DMV mails you a written RDL release letter. Vermont’s removal process requires DMV to send a written release letter confirming all conditions are met and no violation extensions are pending. The installer must receive this letter before de-installing. Apply for removal using form VL-15. Removing the device before receiving the letter — even if you believe your term is complete — can result in a license suspension. Wait for the letter.
Vermont DMV-approved providers
Vermont approves all six major national providers. Vermont is one of the few states where every provider on this site is on the official state list.
| Provider | Monthly est. | With 50% discount | |
|---|---|---|---|
| Intoxalock | $60–100 | ~$30–50 | 888-283-5899 |
| Smart Start | $70–100 | ~$35–50 | 800-831-3299 |
| LifeSafer | $65–95 | ~$33–48 | 800-634-3077 |
| Guardian Interlock | $65–95 | ~$33–48 | 800-499-0994 |
| RoadGuard (Dräger) | $65–95 | ~$33–48 | 833-545-0368 |
| ALCOLOCK | $60–90 | ~$30–45 | 866-700-9300 |
All six major national providers are approved by Vermont DMV. Confirm current approval at dmv.vermont.gov. 50% discount estimates based on DMV-required reduction for 3SquaresVT, LIHEAP, or Reach Up recipients — show benefit documentation to the provider before signing.
What an interlock costs in Vermont
| Installation (one time) | $70–150 (50% off for qualifying benefit recipients) |
| Monthly lease + monitoring | $60–100 (50% off for qualifying benefit recipients) |
| Removal | $50–75 (50% off for qualifying benefit recipients) |
| Vermont DMV — Restricted license fee | $125/year (renewed annually) |
| Vermont DMV — License reinstatement fee | $96 |
Over a 90-day first-offense RDL: roughly $400–600 (or $200–300 with 50% discount). Estimate your exact cost →
Vermont requires SR-22 insurance — filed by the insurance company, not the agent. Minimum 3 years on file with Vermont DMV. The SR-22 must be filed directly by the insurance company under 23 V.S.A. 800/801/804. See Vermont SR-22 costs and cheapest carriers →
Vermont DUI interlock FAQ
Is the interlock mandatory for a first DUI in Vermont?
No — it’s elective. Vermont’s first-offense IID is a choice: install an IID and get an RDL to drive throughout your 90-day suspension, or don’t install and sit out the suspension without driving. For most working drivers, the IID is clearly worth the cost. For a second or subsequent offense, the IID is mandatory for license reinstatement — there’s no elective option.
Who qualifies for the 50% cost reduction in Vermont?
Drivers currently receiving 3SquaresVT (Vermont’s SNAP equivalent), LIHEAP (fuel assistance), or Reach Up benefits. Show active benefit documentation to the provider before signing — providers are required by Vermont DMV to apply the 50% reduction to installation, monthly maintenance, and removal costs. This applies to all device costs, making it one of the most accessible cost-relief programs nationally.
How do violations affect my Vermont IID term?
Vermont uses a tiered extension schedule: missed service visit = +60 days; 3+ startup attempts at BAC 0.04%+ or failed retest at BAC 0.04–0.07% = +3 months; failed retest at BAC 0.08%+, tampering, driving a non-IID vehicle, or circumvention = +6 months per occurrence. Extensions are cumulative — multiple violations keep adding.
When can I remove the IID in Vermont?
Only after Vermont DMV mails you a written RDL release letter. Do not remove the device before receiving this letter — even if you believe your term is complete. Apply for removal using form VL-15 after meeting all reinstatement conditions and confirming no pending violation extensions. The installer must restore the vehicle to original condition.
What does a third DUI mean for the interlock in Vermont?
A third or subsequent DUI results in a lifetime license revocation. The driver must document 3 years of abstinence through Vermont’s Total Abstinence Program and serve 3 years on an interlock RDL/certificate before petitioning for reinstatement. The IID is a required component of the reinstatement pathway, not just an optional driving tool.
Sources:
Vermont DMV — Ignition Interlock Device;
23 V.S.A. 1213; 1209a; 1205; 1201.
Last verified August 2026.
Advertising disclosure: We may be compensated when you contact a provider through our numbers or links. This doesn’t affect our rankings or information. Content is informational only — not legal advice. Verify Vermont DMV approval and current 50% discount eligibility before installation.