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Connecticut ignition interlock

Ignition interlock 
device information:

The customer service is fantastic. I travel a lot and they have worked with me to make sure I have had my unit when I needed it.

- Doug, Connecticut Intoxalock driver

Connecticut ignition interlock laws & requirements

Intoxalock ignition interlock devices are state approved in Connecticut” style=
Approved by the
State of Connecticut:

What to do after getting an OUI can be confusing. Intoxalock is here to help. We have over 20 years of experience helping people just like you install an ignition interlock in Connecticut and get back on the road.

Don’t let the thought of installing a car breathalyzer intimidate you. Our state specialists will help you find a local service center, schedule an installation near your home, answer all of your ignition interlock questions and walk you through the process of regaining your license as quickly as possible.

Intoxalock ignition interlock device benefits:

  • First month FREE*
  • #1 ignition interlock provider in Connecticut
  • Largest service center network in the state
  • 24/7 customer service support
  • Affordable ignition interlock device pricing
  • Over 1,800 convenient locations nationwide
  • The fastest way to get back on the road legally


Additional drunk driving resources:

State of Connecticut ignition interlock & drunk driving laws:

Failure/Refusal of a chemical test

Under Connecticut’s Implied Consent Law, any person who operates a motor vehicle is presumed to have given his or her consent to a test to determine blood alcohol concentration (BAC). Failure of or refusal to submit to a breath, urine or blood test will cause you to lose your license for a minimum of 45 days.

For all arrests on or after July 1, 2015, you are required to install an ignition interlock device as a condition of license reinstatement. The IID will be required for six months to three years, depending on your age and number of arrests on your driving record.

See IID Program Requirements

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First Conviction OUI

If you are convicted for OUI in Connecticut, your license will be suspended for a minimum of 45 days. If you have already served 45 days of suspension for failing or refusing a chemical test for the same arrest, you may not be required to serve the suspension.

You are required to install an ignition interlock device as a condition of license reinstatement. The IID will be required for one year or for the IID duration required following the failure or refusal suspension, whichever is longer. If you have already been reinstated with an IID following the failure or refusal suspension your existing IID requirement may be extended.

See IID Program Requirements

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Second Conviction OUI

If you are convicted a second time for OUI in Connecticut, your license will be suspended for a minimum of 45 days. If you have already served 45 days of suspension for failing or refusing a chemical test for the same arrest, you may not be required to serve the suspension.

You are required to install an ignition interlock device as a condition of license reinstatement. The IID will be required for three years* or for the IID duration required following the failure or refusal suspension, whichever is longer. If you have already been reinstated with an IID following the failure or refusal suspension your existing IID requirement may be extended.

See IID Program Requirements

*For the first year of the IID requirement you are restricted to driving only to and from work, school, an alcohol or drug abuse treatment program, probation appointments, or an ignition interlock installation center for the first year. You must carry an appropriate schedule with you at all times.

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Vehicular assault/Manslaughter

If you are convicted for vehicular assault or vehicular manslaughter your license will be suspended for a minimum of one year.

You are required to install an ignition interlock device as a condition of license reinstatement. The IID will be required for two years or for the IID duration required for the failure or refusal suspension, whichever is longer.

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Third Conviction OUI

If you are convicted a third time for an OUI offense, your license will be permanently revoked. You may request a DMV hearing for reconsideration only after at least two years has passed from your revocation date.

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Ignition Interlock Program Requirements

Your license will be suspended for at least 45 days. Once you have served your required license suspension period, you are required to participate in the ignition interlock device program as a condition of license reinstatement. If you have other suspensions that will end later than the 45 day period, you will not be reinstated until the appropriate date.

  • Be sure your vehicle has a valid registration
  • Complete part one of DMV Form P-246. If the vehicle is registered to someone other than yourself, the registered owner must complete part two
  • Have your ignition interlock device installed. The installer will complete part three of Form P-246
  • Submit the completed application to DMV
  • If you have not already done so, pay a $175.00 restoration fee and $100.00 IID administration fee. DMV fees may be paid by check or money order submitted with your applications, or may be paid online at www.ct.gov/dmv
  • Allow DMV two weeks to process your request for reinstatement. DMV will mail a notice of restoration and a final approval letter to you after all requirements are on file and your suspension time has been served. You may operate only a vehicle equipped with an IID for the duration required by law
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*Connecticut customers only. 6 month minimum lease required.

This information is provided as a guideline only. Each case will vary.

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