Ignition Interlock Device (IID) in Maine

Maine uses the term "OUI" for impaired driving offenses. IID requirement: required for all dui offenses. First offense scope: 1 year. Confirm your actual notice and license status.

Last updated: 2026-09-07

Required for all DUI offenses

Quick Answer

Maine requires IID for all OUI (Operating Under the Influence) convictions, including first offenses with BAC 0.08%+.

IID Duration by Offense

Offense	IID Duration
1st Offense	1 year
2nd Offense	3 years
3rd Offense	6 years
4th+ Offense	10 years

BAC threshold: Any OUI conviction (no BAC threshold — all offenders)

Confirm the device, provider and written quote

Check the responsible authority’s current approval information for the particular device and installer. Request the billing unit, included services, actual paid visit schedule, taxes, fees and removal terms in writing. Confirm financial assistance separately.

Add your own quoted charges in the IID worksheet. Unknown charges stay unknown; no local price or appointment count is assumed.

Restricted License with IID

Available

Maine issues a conditional license with IID for essential driving purposes.

Tampering / Circumvention Penalties

Tampering with an IID in Maine carries fines, possible jail time, and extension of the IID requirement.

Early Removal

Maine does not allow early removal.

Maine-Specific Notes

Maine uses the term OUI (Operating Under the Influence). The state has very long IID durations for repeat offenders: up to 10 years for a fourth offense.

Frequently Asked Questions

Is an IID required for a first OUI in Maine?

Yes. Maine requires IID for all OUI convictions, including first offenses, for 1 year.

How long do I need an IID in Maine?

First offense: 1 year. Second: 3 years. Third: 6 years. Fourth or more: 10 years.

How much does an IID cost in Maine?

Get a written quote for your vehicle and program. Confirm the billing period, included service, separately paid visits, taxes, state/program fees and removal charges. Verify any financial assistance before assuming a discount. A generic state price range is not your quote.

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Disclaimer: This is informational only, not legal advice. IID requirements, costs, and approved providers change frequently. Verify current requirements with the Maine DMV, your IID provider, or a qualified DUI attorney in Maine.

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Sources

NHTSA: interlock device and program background. This national reference does not verify every state rule above. Confirm the applicable law and current instructions with the authority named on your order or licensing notice.