Indiana Ignition Interlock Requirements (2026): Costs & Approved Providers
Indiana does not mandate an ignition interlock for all OWI offenders — the court decides. If your judge ordered one, or if you’re seeking Specialized Driving Privileges, here’s what Indiana law requires, which device models are certified, and what it will cost.
| All-offender mandate? | No — courts have discretion. IC §9-30-5-16(a) says the court “may” order an IID; there is no automatic mandate for any offense level. |
| When is IID ordered? | As a condition of Specialized Driving Privileges (SDP) during suspension, or as a standalone probation condition at sentencing |
| Pre-conviction IID | Court may order IID in lieu of suspension before conviction under IC §9-30-6-8(d) |
| IID term | Set by the court — no fixed statutory minimum or maximum for a first offense. IC §9-30-8-1 caps the term at the maximum term of imprisonment for the offense |
| Who certifies | Indiana State Department of Toxicology certifies device models (not vendors) — see the certified model list |
| BMV restriction | Restriction 6 added to your driving record when IID is ordered (IC §9-30-8-5) |
| Violation — driving without IID | Class A misdemeanor (IC §9-30-5-16(c)) |
| Violation — tampering | Class B misdemeanor (IC §9-30-5-8) |
| Financial assistance | Sentencing court may waive install cost for indigent defendants (IC §9-30-8-1); no statewide subsidy fund |
| SR-22 required? | Yes — SDP holders must keep SR-22 on file with BMV for the entire SDP period; duration varies (commonly 3 years) |
| Offense term | OWI (Operating While Intoxicated) |
| Governing law | IC §9-30-5-16; §9-30-8; §9-30-6-8(d); §9-30-16-3/-4 |
How Indiana’s IID system works
Indiana gives judges full discretion on whether to order an ignition interlock. There is no statutory mandate — not for a first offense, not for a second, not even for a BAC above a specific threshold. The interlock typically enters the picture in two ways:
- Specialized Driving Privileges (SDP): If your license is suspended after an OWI, you can petition the court for an SDP — a restricted license letting you drive to work, school, and medical appointments. Courts routinely attach an IID requirement to an SDP. If you have an SDP with an IID condition, you must also maintain an SR-22 with BMV for the entire SDP period.
- Probation condition: The sentencing court may order an IID as a standalone condition of probation, separate from any SDP.
Your court order is the controlling document. Read it carefully — it specifies the required term, which devices are acceptable (must be a certified model), and what constitutes a violation.
Providers using Indiana-certified device models
The major national providers below use device models that are expected to include Indiana-certified models. Confirm the specific device model before signing — ALCOLOCK does not appear on Indiana’s certified model list.
| Provider | Monthly est. | Coverage | |
|---|---|---|---|
| Intoxalock | $60–100 | Statewide | 888-283-5899 |
| Smart Start | $70–100 | Statewide | 800-831-3299 |
| LifeSafer | $65–95 | Statewide | 800-634-3077 |
| Guardian Interlock | $65–95 | Statewide | 800-499-0994 |
| RoadGuard (Dräger) | $65–95 | Statewide | 833-545-0368 |
Before signing, ask each provider which specific device model they will install and verify it against the ISDT certified model list. ALCOLOCK does not appear on Indiana’s certified list. Monthly estimates are market ranges.
What an interlock costs in Indiana
| Installation (one time) | $70–150 |
| Monthly lease + monitoring | $60–100 |
| Removal | $50–75 |
Over a typical 12-month court-ordered term, expect roughly $900–1,400 in device costs. The sentencing court may waive the installation cost for an indigent defendant — ask your attorney to request this at sentencing. Estimate your exact cost →
How to get installed — 5 steps
- Read your court order carefully — it will specify whether an IID is required, for how long, and any restrictions on which devices are acceptable.
- Check the ISDT certified device model list and confirm any provider you contact uses a certified model for Indiana.
- Call a provider and book installation. Bring your court order and ID. Installation takes 60–90 minutes.
- If your IID is tied to an SDP, file your SR-22 with BMV — required for the entire SDP period.
- Serve the full court-ordered term. Driving without the device is a Class A misdemeanor; tampering is a Class B misdemeanor. Removal requires a court order — contact your attorney before the term ends.
Violations and consequences
Indiana does not have a statutory automatic time-extension schedule for failed tests or missed retests — consequences flow through the court rather than being automatically applied by the BMV. However, violations are serious:
- Driving any vehicle without a court-ordered IID → Class A misdemeanor (IC §9-30-5-16(c))
- Tampering with or circumventing the device → Class B misdemeanor (IC §9-30-5-8)
- Any violation of the IID order → court may revoke or modify your SDP
If the device logs a failed test or missed retest, the provider will report it. Whether that triggers immediate court action depends on the terms of your specific order. Contact your attorney immediately if you experience any violation.