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Facial coverings must be worn during all road skills tests and are highly recommended to be worn when entering a DMV office.

Ignition Interlock Device Program

Additional Penalties and Violations


If you commit any of the violations listed below, Connecticut regulation §14-227a-12a, requires the DMV to extend your IID requirement by thirty (30) days for each violation. The IID vendor determines violations based on your calibration reports and submits electronic notification to DMV:

1. Failing to appear for IID service within five days of your scheduled service date
2. Failing a rolling retest
3. Failing to submit to a rolling retest
4. Failing a startup test with a BAC of 0.05 or higher
5. Tampering with OR attempting to tamper with the IID
6. Circumventing OR attempting to circumvent the IID
7. Operating a vehicle without the required IID
8. Removing the IID without proof of written authorization from DMV
9. Requesting or soliciting another person to blow into or otherwise activate the device for the purpose of providing the restricted driver with an operable motor vehicle



If your vendor reports any violations to DMV, a letter will be sent to the address on record, notifying you of the IID violation and the extension of the IID requirement. You may contest your IID violations by submitting a letter with your full legal name, date of birth, license/permit/ID number, the violation date(s), and an explanation of the events that occurred. You must provide your calibration logs and supporting documents to the following address:


Department of Motor Vehicles

Driver Services Division

60 State Street

Wethersfield, Connecticut  06161-1013


Drivers Services will determine if the documents submitted support the removal of the violation(s). A letter will be sent to you with the decision.

If your license is suspended while you are participating in the IID program, you will not be given credit towards completion of the IID requirement during the term of the suspension. 

For individuals on probation supervision, all violations will be reported to the Court Support Services Division of the Judicial Branch (Probation Department), including all instances of being unable to start your car due to having an alcohol level above the threshold.