Key points
- A hearing officer who restores driving after a revocation may first issue a restricted license, and any such license requires a working interlock on each vehicle the driver owns or intends to drive for at least 1 year.[1][2]
- The 1-year clock starts only when installation is verified and the Secretary of State issues a valid restricted license.[3]
- A major violation, such as a missed or failed rolling retest, tampering, or driving a vehicle without the device, brings back the original revocation.[4][5]
- A minor violation adds 3 months both to the minimum interlock period and to the wait before the next hearing.[5]
- Full privileges require another hearing; the device must stay in until the Secretary of State issues an order authorizing removal.[2][6]
Winning a Michigan restoration hearing after a repeat-OWI revocation does not bring back a full license right away. The hearing officer may first issue a restricted license, and every restricted license issued after such a hearing requires a working ignition interlock on each vehicle the driver owns or intends to drive, for an initial period of at least 1 year.[1][2]
This guide covers that stage: what the restricted license requires, how the interlock period is counted, what counts as a violation and what each violation costs, and how a driver moves to an unrestricted license. The device itself is described in ignition interlock devices.
What the restricted license requires
A hearing officer who issues a restricted license after a revocation or denial under section 303(2)(c), (d) or (g) must require a properly installed and functioning interlock on each vehicle the person owns or intends to operate, with the cost paid by the driver, and must condition the license on verification that the device has been installed.[1] The license cannot allow driving a commercial vehicle that hauls hazardous material.[1]
The restrictions themselves are set out in the hearing officer's order. The Secretary of State says its summary of interlock rules does not cover everything and tells drivers to read the order in its entirety and follow all its instructions.[7]
If the driver will drive a vehicle owned by an employer, the Secretary of State notifies the employer of the interlock restriction. The employer is not required to install a device. That rule does not apply to a self-employed person's vehicle used for both business and personal driving.[8]
When does the 1-year interlock period start?
The minimum period begins only when both of these have happened: the driver verifies to the department that an interlock has been installed, and the department issues a valid restricted license.[3] Time before both steps are complete does not count toward the minimum.[3]
If the restricted license is interrupted, the hearing officer may add together the periods when it was actually in effect to decide whether the minimum has been met.[3] Each minor violation extends the minimum interlock period by 3 months.[5]
Servicing and reports
The provider must service the device at least once every 60 days. It must report any major or minor violation, or any removal without an order, to the Secretary of State within 5 business days, with a copy to the driver, and it cannot withdraw a report once made.[9] Providers also prepare a report at the end of each 12-month period the device is installed and whenever it is removed.[10] They may not give the driver overrides or override instructions unless federal specifications or the department allow it.[11]
Major violations
Each of these is a "major violation" during the monitoring period of a restoration license:[4]
- a rolling retest violation, meaning an alcohol reading while driving that is not cleared by a passing sample within 5 minutes, or a missed retest;[4]
- being issued a temporary permit under section 625g, which follows a new OWI arrest;[4]
- a conviction for an interlock crime under section 625l;[4]
- servicing that shows tampering or circumvention, or an attempt at either;[4]
- three minor violations;[4]
- removing the device without an order, unless a device is installed in a vehicle the driver owns or drives within 7 days;[4][6]
- driving any vehicle without a properly installed and working device.[4]
The monitoring period includes any extension the department imposes.[12] When a major violation is reported, the Secretary of State reinstates the original section 303 revocation or denial and gives at least 5 days' written notice. If a written hearing request is filed within 14 days after the reinstatement, a hearing is scheduled, and at that hearing the driver must show why the reinstated revocation should be set aside or modified.[5]
The Secretary of State's page says the request for a violation hearing must be received by OHAO within 14 days of the effective date of the reinstatement.[13] It also says that a driver who misses that window, or chooses not to appeal, becomes eligible for a hearing one year after the date of the last appeal hearing.[7]
Minor violations
A "minor violation" is either 3 start-up test failures after the device has been installed for at least 2 months, or failing to report for monitoring within 7 days after the scheduled service date.[14] A start-up failure does not count if a passing test is given within 15 minutes, and several failed attempts at one time count as one failure.[14] Each minor violation extends both the time before another hearing may be held and the minimum interlock period by 3 months.[5]
Practical points the Secretary of State lists
The Secretary of State's guidance for drivers on an interlock includes several practical instructions:
- Never leave the vehicle running when you are not in it; the Secretary of State says a missed rolling retest, or no sample within five minutes of a retest request, results in revocation.[15]
- Call the interlock company before any repair, keep receipts for parts, towing and repairs, add a notarized letter explaining the work, and send the documents within five days to the address the Secretary of State gives.[15]
- After a disputed reading, a police breath test within one hour or an EtG lab test within 24 hours may help at a later hearing, though it will not prevent a revocation.[15]
- Limit who drives the vehicle; the driver is responsible for all violations, even if someone else was driving.[15]
- When switching providers, have the new device installed within 7 days of removal.[6][16]
Moving to an unrestricted license
The rules describe the restricted license as lasting for a period the hearing officer sets "before consideration for an unrestricted license."[2] That consideration happens at another OHAO hearing. The Secretary of State lists "change / removal of restrictions" as a separate hearing type. For it, the driver files Form 257, a current interlock report or receipt, and community support letters (or witnesses), plus Form 258 and a drug screen if the driver was ever arrested for an alcohol or drug offense.[17] The checklist asks for an interlock report dated within 30 days of submission.[18]
After the minimum monitoring period, the driver must get an interlock report from every provider that has installed a device, and may be required to prove the device was in place for the minimum period.[10] The device must not be removed until the Secretary of State issues an order authorizing removal.[6] The evidence and standard at the hearing are covered in what a restoration hearing requires and license restoration hearings.
If the restricted driving came from the circuit court
When a circuit court, rather than a hearing officer, finds a revoked driver eligible for restricted driving, its order must require an interlock on each vehicle the driver operates for at least 1 year before the driver may return to the Secretary of State for a hearing.[19] The order must direct the Secretary of State to revoke the restricted license for listed events, including breaking the restrictions, unauthorized removal of the device, a major violation, using alcohol or a controlled substance without a prescription, and a new OWI arrest.[20] See appealing a license sanction to circuit court.
After full restoration
An unrestricted license does not remove the conviction from the driving record. The Secretary of State's driver manual says a conviction for impaired driving stays on the driving record permanently.[21] A later OWI conviction can lead to a new revocation, and a revocation within 7 years of an earlier one carries a minimum of 5 years.[22][23] See how long an OWI stays on your record and license revocation for repeat OWI.
Common questions
How long do I have to keep the interlock after my Michigan license is restored?
The statute sets the initial interlock period at not less than 1 year when a hearing officer issues a restricted license after a revocation.[1] The period begins when installation is verified and a valid restricted license is issued, and minor violations each add 3 months.[3][5] The hearing officer's order states the details for each driver, and the Secretary of State tells drivers to read the whole order.[7]
What happens if my interlock reports a violation?
For a major violation, the Secretary of State reinstates the original revocation with at least 5 days' written notice; the driver may request a hearing within 14 days and bears the burden of showing the revocation should be set aside or modified.[5] The Secretary of State says the request must be received within 14 days of the reinstatement's effective date.[13]
Am I responsible if someone else drove my car and blew a high reading?
The Secretary of State tells interlock users they are responsible for all violations, even if someone else was driving. It suggests getting a police breath test within one hour, or an EtG lab test within 24 hours, after a disputed reading; these will not prevent a revocation but may help at a hearing.[15]
Can I drive my employer's vehicle without an interlock?
If the restricted driver will drive an employer-owned vehicle, the Secretary of State notifies the employer of the interlock restriction, and the employer is not required to install a device. This does not apply to a self-employed person's vehicle used for both business and personal driving.[8] Neither provision says the driver may then drive that vehicle without a device: the rules list operating any motor vehicle without a properly installed and functioning interlock as a major violation.[4] The hearing officer's order states the terms that apply.[7]
How do I get the interlock removed and a full license back?
Through another OHAO hearing. The Secretary of State lists "change / removal of restrictions" as its own hearing type, filed with Form 257, a current interlock report and community support letters, plus an evaluation and drug screen for drivers with alcohol or drug arrests.[17] The device must stay in until the department issues a removal order.[6]
Sources
- MCL 257.322(6), (7), (9) — Michigan Legislature
- Mich Admin Code, R 257.313(1)(h) — Michigan Administrative Code
- Mich Admin Code, R 257.313a(3), (4) — Michigan Administrative Code
- Mich Admin Code, R 257.301a(d), (g) — Michigan Administrative Code
- Mich Admin Code, R 257.313a(11), (12) — Michigan Administrative Code
- MCL 257.322a; Mich Admin Code, R 257.301a(d)(vi) — Michigan Legislature
- Michigan Department of State, OHAO page ("How do I use my interlock?"; "I violated the terms of my ignition interlock agreement, what do I do now?") — Michigan Department of State
- MCL 257.322(8) — Michigan Legislature
- Mich Admin Code, R 257.313a(5)–(10) — Michigan Administrative Code
- Mich Admin Code, R 257.313a(13)(c), (f), (14) — Michigan Administrative Code
- Mich Admin Code, R 257.313a(16) — Michigan Administrative Code
- Mich Admin Code, R 257.301a(f) — Michigan Administrative Code
- Michigan Department of State, OHAO FAQ — Michigan Department of State
- Mich Admin Code, R 257.301a(e), (j) — Michigan Administrative Code
- Michigan Department of State, OHAO page ("How do I use my interlock?") — Michigan Department of State
- Michigan Department of State, OHAO page ("How do I use my interlock?"; "Switching interlock companies") — Michigan Department of State
- Michigan Department of State, OHAO page ("How should documents be uploaded to DAIS?") — Michigan Department of State
- Michigan Department of State, "Request a hearing" page and OHAO page — Michigan Department of State
- MCL 257.323(5), (8) — Michigan Legislature
- MCL 257.323(5)(e) — Michigan Legislature
- Michigan Secretary of State, *What Every Driver Must Know* (October 2025), ch. 2 "Your Driving Record", p. 13 — Michigan Department of State
- MCL 257.303(2)(c) — Michigan Legislature
- MCL 257.303(4)(a) — Michigan Legislature
This page is general legal information about Michigan law, published by the office of Attorney Shawn Haff. It is not legal advice and reading it does not create an attorney-client relationship. Laws change and every case turns on its own facts — check the sources linked above and talk to a licensed Michigan attorney about your situation. In an emergency, call 911. For confidential help with alcohol or drug use, the SAMHSA National Helpline is 1-800-662-4357.