
Iowa Ignition Interlock Requirements
Iowa allows drivers who have their license suspended due to OWI (Operating While Intoxicated) to regain driving privileges if they install a state-approved ignition interlock device (IID) to monitor their breath alcohol concentration (BrAC). This guide will explain the steps drivers must take if convicted of an OWI.
The Iowa Ignition Interlock Program
In Iowa, operating a vehicle while intoxicated is known as OWI, and applies to anyone who is driving with a breathe alcohol concentration (BrAC) of .08 percent or higher, or who has any amount of a controlled substance in their blood.
Drivers who are charged with OWI in Iowa will have their license revoked, including first-time offenders. The period of revocation is determined by the court, but all offenders will have their license revoked if convicted. Iowa allows convicted drivers to apply for a temporary restricted license if being unable to drive is a hardship, but drivers must install a certified ignition interlock device on all vehicles they operate to qualify.
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How Can I Get a Temporary Restricted License in Iowa?
For some people, going without a driver’s license is a hardship. They may have no other way to get to work or school. In those cases, they may be eligible for a restricted license that would allow them to drive to approved locations like work, school, home, treatment, and medical appointments. You may be eligible for a temporary restricted license if you meet the following criteria:
- Pass any required exams
- Provide a certificate of proof that an ignition interlock device has been installed
- Submit proof of SR-22 insurance
- Pay any required fines
- Fill out the temporary restricted license request form
What Happens if I Get an OWI in Iowa?
First OWI Offense
- 48 hours to one year in jail
- $625 to $1,250 fine
- License revoked for 180 days, depending on compliance with chemical testing
- Must install an ignition interlock device on all vehicles operated during revocation
Second OWI Offense
- Seven days to two years in jail
- $1,875 to $6,250 in fines
- License revoked for one year
- IID required for one year after reinstatement and for all vehicles operated
Third OWI Offense
- 30 days to five years in jail
- $3,125 to $9,375 in fines
- License revoked for six years
- IID required for all vehicles operated for temporary restricted license eligibility
Compliance-Based Removal Program
Under the Compliance-Based Removal (CBR) program, non-compliance with IID requirements can extend the IID requirement period by 60 days per violation. Violations include:
- 10 or more failed BrAC tests (≥ 0.04%) within 30 days
- 5 or more failed BrAC tests (≥ 0.04%) within 24 hours
- Tampering with or attempting to circumvent the IID
- Removing the IID without authorization
Medical Waivers
Drivers who have a verifiable medical condition preventing the proper use of an IID can apply for a medical waiver. If granted:
- IID installation is not required to receive a TRL
- The TRL will limit driving to specific locations, such as work, school, or medical appointments.
Effective Date: These changes take effect on January 1, 2025, and apply to offenses that occur on or after this date.
Get a Free Quote! Call 877-274-3419
The Process: What to Expect
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Consult with Legal Counsel
Seek guidance from a DUI lawyer to understand your legal options and rights following a DUI violation.
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Get an Assessment
Complete a court-ordered or voluntary assessment to evaluate your risk level and determine any required interventions.
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Obtain Proof of SR-22 Insurance, If Required
If applicable, provide proof of financial responsibility and insurance coverage with an SR-22 certificate.
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Schedule Interlock Install
Speak to our State Specialists to schedule your IID installation to meet court or state requirements.
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Regular Monitoring
Your ignition interlock usage will be regularly monitored to maintain compliance with legal requirements.
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Device Removal
After fulfilling your IID requirement and receiving approval from your monitoring authority, you can arrange to have your ignition interlock device removed at your local service center.
Iowa Ignition Interlock Device Cost

Expert OWI Attorneys in Iowa
Abby Walleck
Spirit Lake, IA 51360
Law Office of Adam Kehrwald
Des Moines, IA 50312
Amanda J. Heims, P.C.
Council Bluffs, IA 51503
McCarthy & Hamrock, P.C.
West Des Moines, IA 50266
Iowa FAQs
What is an ignition interlock device and why do I need one?
An ignition interlock device is a breathalyzer that is installed in your vehicle to prevent drinking and driving. It is made up of a mouthpiece, a handheld unit and a cord that attaches to your vehicle’s ignition system. You are required to blow into the mouthpiece to test your Breath Alcohol Concentration (BrAC) before starting your car. For more information see our what is an interlock page.
What are the Iowa ignition interlock device requirements?
To view Iowa IID requirements, please visit the Iowa state page.
How much does an ignition interlock cost in Iowa?
For pricing information, see Iowa pricing.
What are the steps to get my ignition interlock device in Iowa?
Please visit the Iowa state page to learn what steps you need to take to get back on the road.
What information should I provide to get my ignition interlock device installed in Iowa?
To learn more about the steps to regaining your license, please visit our Iowa state page.
How do I find an installation location near me in Iowa?
To find the Iowa Intoxalock service center closest to you, please visit our Iowa Installation Locations page.
When can I get my ignition interlock device removed in Iowa?
The only way to confirm you are eligible to remove the device is to check with your monitoring authority.
What information should I provide to get my ignition interlock device removed in Iowa?
Contact your monitoring authority to ensure you are eligible for removal.
What are the other OWI requirements in Iowa?
To view all of the OWI requirements in Iowa, please visit our state page.
Can I get financial assistance to pay for my ignition interlock device in Iowa?
For pricing information, see the Iowa pricing page.
Where can I find other OWI resources such as an OWI attorney, treatment center, or SR-22 insurance in Iowa?
To find an Iowa OWI attorney near you, please visit Intoxalock’s OWI attorney’s page.
To find an Iowa OWI treatment center, please visit Intoxalock’s OWI treatment center page.
How does an ignition interlock device work?
To see how an ignition interlock device works, visit our ignition interlock page and watch our video demonstrating how to use the device.
Where can I find more information on ignition interlock devices?
To learn more about ignition interlock information, please visit our ignition interlock device page.
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