Ignition Interlock Devices in Louisiana

When is an IID Authorized?

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

When are IIDs Authorized?

Louisiana courts authorize the installation and maintenance of an IID as follows:

  • For the offense, upon first or second conviction, or entry of a plea of guilty or nolo contendere, the offender’s vehicle must be equipped with a functioning ignition interlock device to be issued a restricted license.
  • First offense with a BAC of 0.20 or more results in suspension for at least 2 years. But a restricted license may be granted during the entire period of suspension with installation of ignition interlock.

 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 Louisiana. You can find a list of approved IID providers at the Louisiana 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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