Ignition Interlock Devices in Pennsylvania

When is an IID Authorized?

Pennsylvania has authorized the use of ignition interlock devices (IIDs) for certain drivers convicted of alcohol related driving offenses.

When are IIDs Authorized?

Pennsylvania courts authorize the installation and maintenance of an IID as a condition of reinstatement of driving privileges for:

  • First offenders (optional)
  • Second and subsequent offenses (mandatory) for at least 1 year following license reinstatement.

 What’s an IID?

An IID connects to the vehicle dashboard and the driver breaths into the device prior to starting the vehicle. If the IID detects a BAC above the limit programmed the device (typically calibrated at .02%), then the engine won’t start. Read more about ignition interlock devices (IIDs).

Where Can I Find an IID Provider?

For a list of approved vendors go to the Pennsylvania DUI Association webpage padui.org and click on the Ignition Interlock link at the bottom of the home page. If you do not have access to the Internet, call the Pennsylvania DUI Association at 1-800-627-2384 .

Who Pays For it?

In almost all cases the driver who has been convicted of a DUI/DWI pays for the installation and lease of the ignition interlock system. You can expect to pay up to $100 for installation (although some companies offer free installation) and between $75-$120 per month for the lease. This is a rough estimate and your price may be higher or lower depending on your location.


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