Ignition Interlock Rules in Connecticut

First Offense in Connecticut

Yes. Required before restoration for all alcohol-related suspensions: 1 year after restoration on a first conviction; 6 months (21 or older) or 1 year (under 21) on a first failed-test suspension; 1 year on a first refusal. The longer period applies.

Official source: first offense (Connecticut)

Repeat Offenses in Connecticut

3 years after restoration on a second conviction; permanent revocation on a third conviction

Official source: repeat offenses (Connecticut)

How the Program Works in Connecticut

You pay all installation and maintenance costs, a $100 DMV interlock administration fee and a $175 reinstatement fee. The requirement starts on the date your license is restored. Calibration every 25 to 30 days; each reported violation extends the requirement by 30 days.

Official source: how the program works (Connecticut)

More on DUI Law in Connecticut

See the full overview of DUI laws in Connecticut and read about how ignition interlock programs work.

• Connecticut DUI Penalties: First, Second and Third Offense
• DUI License Suspension in Connecticut: Hearing Deadline and Hardship License
• Can a DUI Be Expunged in Connecticut?
• Refusing a Breath or Blood Test in Connecticut

Frequently Asked Questions