If you have been charged with Operating While Intoxicated (OWI) in Wisconsin, you might expect to pay fines and maybe have your license suspended. However, there is something that you might not think about: the ignition interlock device (IID). This is a breath-testing unit wired into your vehicle. You will not be able to start the engine unless you blow an alcohol-free breath sample.

Will you need one for your vehicle? Here is what you need to know about ignition interlock device requirements for OWI in Wisconsin. 

What Is an Ignition Interlock Device? 

This small breathalyzer is connected to your car’s ignition system. Before starting the vehicle, you have to blow into the device. If your Blood Alcohol Concentration (BAC) is above the preset limit (usually 0.02%), the car will not start.

You will also be required to give rolling retests while driving. The device will beep at random times, and you will need to breathe into it for another breath sample. This prevents someone else from starting the car for you, and it also ensures that you are not drinking while driving.

When Is an IID Required in Wisconsin?

Not all convictions will lead to an IID installation. Under the law, this is mandatory if:

• You are convicted of a second or subsequent OWI offense
• Your BAC was 0.15% or higher at the time of arrest. This applies to first-time offenders, too
• You refused to take a chemical test during your arrest under the state’s Implied Consent Law

Sometimes, a judge might order an IID even if you do not meet these thresholds.

What Is the Process?

If you’re ordered to use an IID in Wisconsin, you will need to have it installed by a state-approved provider. Many times, the courts will set a deadline after your conviction. 

This device must be installed on every vehicle you own or regularly drive. If you share several vehicles with others, they will all need an IID.

After the installation, you have to show proof of installation to the Wisconsin DMV. From this point on, you must use the IID every time you start your car. 

You can expect to bring the vehicle for any required calibration appointments throughout your sentence. These are usually done every month.

Once you are done, you will have to arrange removal with your provider and submit proof to the DMV to have your license fully restored.

What Is the Cost of an IID in Wisconsin?

These devices are not free, so you can expect additional costs associated with the IID. These may include:

• Installation fees between $75 and $150 per vehicle
• The monthly rental fee, which runs around $60 to $100 per month
• Removal fee of $50 to $100 when the requirement ends

The court may offer some drivers a payment plan or reduced-cost program if you can show financial hardship. However, you will need to provide documentation to see if you qualify.

What Happens If You Fail to Comply?

If you do not install or use the IID properly, that can lead to serious consequences, including:

• Additional fines
• Extension of the IID requirement
• Possible jail time for repeated violations

Once installed, you cannot tamper with or try to bypass it. Even having someone else blow into it for you is prohibited. These are all criminal offenses in Wisconsin.

You Need Legal Help for Your OWI Case

Now that you know about the ignition interlock device requirements for OWI in Wisconsin, it is best to avoid them. IIDs are a hassle for you, and they are expensive as well. If you have been arrested for an OWI, you need experienced criminal defense legal assistance to avoid the consequences of a conviction. 
At Melms Law, we are here to help you defend yourself against these criminal charges. Whether this is your first offense or you are facing a subsequent charge, contact us to see how we can assist in your case. Schedule your consultation today.