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Connecticut DUI/OUI Laws & Penalties (2026)

Connecticut treats a second DUI offense as a felony. The state requires ignition interlock devices for all DUI convictions.

DUI attorneys available now in Connecticut
0.08%
BAC Limit
DUI/OUI
Term Used
10 yr
Lookback
Yes
Implied Consent
Yes
Expungement

Connecticut DUI/OUI Penalties

1st Offense

ClassificationMisdemeanor
Jail TimeUp to 6 months (48 hours mandatory)
Fines$500–$1,000
License45-day suspension
Mandatory JailYes

2nd Offense

ClassificationFelony
Jail Time120 days–2 years
Fines$1,000–$4,000
License45-day suspension + 3 years IID
Felony Threshold2nd offense

BAC Limits in Connecticut

0.08%
Standard Driver
0.04%
Commercial Driver
0.02%
Under 21

🔧 Ignition Interlock

Required for all offenses

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🛡️ Insurance Requirements

SR-22 not required (uses FR-6)

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📜 Expungement

DUI/OUI expungement is available in Connecticut. Waiting period: After 10 years.

Expungement Guide →

💰 Estimated Total Cost

A first DUI/OUI in Connecticut typically costs $10,000-$25,000+ including fines, attorney, classes, IID, and insurance increases.

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Find a DUI/OUI Attorney in Connecticut

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Official Sources & References

DUIFinders.com is not a law firm and does not provide legal advice. Information is for general purposes only. Consult a licensed attorney in Connecticut for advice specific to your situation.

Connecticut DUI/OUI FAQ

What is the BAC limit in Connecticut?

The legal BAC limit in Connecticut is 0.08% for regular drivers, 0.04% for commercial drivers, and 0.02% for drivers under 21.

What are the penalties for a first DUI/OUI in Connecticut?

A first DUI/OUI in Connecticut is a Misdemeanor. Penalties include Up to 6 months (48 hours mandatory) jail, $500–$1,000 in fines, and 45-day suspension license suspension.

Is an ignition interlock device required in Connecticut?

Required for all offenses

Can a DUI/OUI be expunged in Connecticut?

Yes, DUI/OUI expungement is available in Connecticut. Waiting period: After 10 years.

What is the lookback period for DUI/OUI in Connecticut?

Connecticut uses a 10-year lookback period to determine if an offense counts as a repeat offense.

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