Ignition Interlock Devices in Delaware

When is an IID Authorized?

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

When are IIDs Required?

Delaware courts are required to order the installation and maintenance of an IID as a condition of reinstatement of driving privileges when:

  • Anyone convicted of a DWI must use an IID.
  • If the license was revoked for 12 months the driver must use an IID for 14 months.
  • If the license was revoked for 12 months without any priors but the driver refused a chemical test, the driver must use an IID for 14 months.
  • If the license was revoked for 18 months the driver must use an IID for 20 months.

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?

IID providers are approved for installation throughout Delaware. You can find a list of approved IID providers at the Delaware DMV website.

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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