Aggressive, Skillful and Experienced Defense

Ignition interlock devices for OWI in Iowa

The penalties for a conviction on drunk driving charges in Iowa are severe. A person convicted of operating while intoxicated can face severe fines, driver's license revocation and a potential jail sentence. In most OWI cases, a person who has had their license revoked can apply for a temporary restricted license to get to and from work or school. However, some individuals will be required to install an ignition interlock device in their vehicle as a condition of receiving a temporary restricted license.

The device is connected to the vehicle's electrical system and will prevent the car from starting if the driver is under the influence of alcohol. Before starting the car, the driver must blow into the device. If the device detects alcohol above a preset limit, the car will not start.

In general, Iowa law requires installation of an ignition interlock device if the individual's blood alcohol level was above 0.10 or if they were involved in an accident. An interlock device will also be required if the person has a prior OWI conviction or license revocation.

The device must be installed on every vehicle the defendant owns or operates. If the defendant is ordered to install the device but fails to do so, they can be found in contempt of court and subject to punishment. If the defendant tampers with the device, they can be charged with a serious misdemeanor. Tampering with the device or driving a vehicle without the device will also lead to revocation of the temporary restricted license.

The ignition interlock requirement is one more reason to prepare an effective defense strategy in an OWI case. An experienced Iowa criminal defense lawyer can help the individual prepare that strategy.

Source:, "321J.4 Revocation of License - Ignition Interlock Devices - Conditional Temporary Restricted License," accessed Nov. 21, 2015

No Comments

Leave a comment
Comment Information

contact us FOR a Free Consultation

Bold labels are required.

Contact Information

The use of the Internet or this form for communication with the firm or any individual member of the firm does not establish an attorney-client relationship. Confidential or time-sensitive information should not be sent through this form.


Privacy Policy

IOWA Association for justice IOWA state bar association NACDL 1958 national association of criminal defense lawyers american association for justice board certified specialist DUI defense law the iowa state bar association


Should I take a breath test?
The most common question asked of criminal defense lawyers who work on Operating While Intoxicated (OWI) or Driving While...

Can I get a work permit or temporary restricted license in Iowa after losing my driving privileges for an OWI?
For a first offense, yes. The revocation is this instance is 180 days for an OWI test failure and one year for an OWI test refusal...

Read More

Get In Touch

J. Dean Keegan, Eric D. Tindal & Andrea Mason Attorneys At Law
425 2nd Street South East, Suite 1250
Cedar Rapids, IA 52406

Cedar Rapids Law Office Map

J. Dean Keegan, Eric D. Tindal & Andrea Mason Attorneys At Law
103 East College Street, Suite 312
Iowa City, IA 52240

Iowa City Law Office Map

facebook twitter

Privacy Policy | Business Development Solutions by FindLaw, part of Thomson Reuters.