Ignition Interlock Device

Does it matter what type of IID I have installed?


  • You must install an IID that is equipped with a camera. 
  • if your BAC was .16 or above, you will be required to install a camera-equipped IID with GPS capabilities, and have it in your vehicle for the entire period of time you must operate under the terms and requirements of an RDL.
  • in some cases, the courts or Department of Corrections may require you to install a device that has “Real-Time” reporting” and/or GPS capabilities.

What if my vehicle has been wrecked?

Contact your installer for specific instructions on how to handle this situation.  Depending upon the amount of damage to your vehicle, you may need to obtain a new IID.  Should you have to replace your vehicle, you will need to have a device installed in your new vehicle.  Have the installer complete a Certification of Ignition Interlock Device Installation, VL-082, and return it to this Department.

What if I voluntarily remove the IID from my vehicle before I am eligible to have it removed?

If you remove the IID from your vehicle before you are eligible, we will receive notification from the IID installer/manufacturer, you will be suspended for the remaining term of your original suspension.  A new suspension with a 10-day lead time will be mailed to you.  The lead time and any Departmental processing time will not be counted towards your suspension.

What is an Ignition Interlock Device

An Ignition Interlock Device, referred to as an “IID”, is an after-market device which is installed in a vehicle.  The IID is connected to the starter or ignition, or other on-board computer system of a vehicle.  The device prevents a driver from operating the vehicle if the driver has been drinking.  Before starting the vehicle, a driver must blow into the device; if the driver’s BAC is at or over a pre-set limit, 0.02 in Vermont, the IID will not allow the vehicle to start.  Once the vehicle is started, at random times during the operation of the vehicle, the device will prompt the driver

IID Certification of Installation

30 November 2016
Certification completed by the installer of the IID. Installer must be certified to provide ignition interlock device services in Vermont.

IID Device Certification

30 November 2016
For manufacturers of Ignition Interlock Devices wishing to have a device certified for use in Vermont

IID Manufacturers

All holders of a Vermont Ignition Interlock Restricted License (RDL) or Ignition Interlock Certificate (IIC) must have a camera-equipped ignition interlock device installed in the vehicle. When contacting an installer (or the manufacturer), you must inform them that Vermont requires a camera-equipped device. If you do not have a camera-equipped device, you will not be allowed to drive the vehicle until a camera-equipped device is installed.


Subscribe to RSS - IID

Contact Us

Vermont Department of Motor Vehicles
120 State Street
Montpelier, VT 05603-0001

Monday-Friday: 7:45am-4:30pm
email telephone

Public Records

Connect with us

Twitter icon
Facebook icon
Instagram icon
YouTube icon
RSS icon