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Oklahoma DUI Ignition Interlock Device

Depending on the circumstances of your DUI or the number of prior convictions on your criminal record, an ignition interlock device (IID) may be required in order to get your driver's license reinstated. This device acts as a breath test, and measures your blood alcohol content (BAC) level before allowing you to start the vehicle.

How Does the Ignition Interlock Device Work?

The IID is a relatively small device that is mounted to the dashboard of your vehicle. To use it, you will be required to blow into a mouthpiece. The device's fuel cell will analyze your breath sample to calculate your BAC. If your BAC is above the preset limit, the incident will be recorded and you will be unable to start the car. If your BAC is below the limit, the device will send a signal allowing the car to start.

Even if you test under the preset limit and successfully turn on the vehicle, a "rolling" retest may also be required to ensure that a friend didn't blow into the device for you. In this case, the device would indicate that a retest is required, and you will be given time to pull over to blow into the device again. If you fail this retest, the device will record it; however, for safety reasons, the engine will not automatically shut off.

When is an Ignition Interlock Device Required?

Individuals with more the one DUI conviction on their record, or those who were charged with a more serious DUI offense can be required to obtain an IID. If you are ordered to get one, you will be responsible for paying all of the associated costs for installation, rental and maintenance.

If you are facing a DUI charge, the legal team at the Edge Law Firm can help. Act now to schedule a free analysis of your charges by calling (877) DUI-EDGE or (918) 582-6333, or by completing our online case evaluation form.

Oklahoma DUI Laws