Recent Connecticut DUI Law Changes
What changed, when it took effect, and who it affects.
October 1, 2025
Driving and boating DUI penalties now apply to each other
Public Act 25-159 makes a DUI or boating-under-the-influence conviction, or a related administrative per se action, suspend your driver’s license and your boating and personal watercraft certificates, and the required ignition interlock period applies to license restoration whether the offense was in a car or a boat.
October 1, 2024
Interlock can end early after a per se suspension; more time for arrest reports
A 2024 act sets conditions under which the ignition interlock requirement after an administrative per se suspension ends earlier than usual, and gives officers 6 business days, instead of 3, to send DMV the DUI arrest report.
2023
DUI erasure waits 10 years after the last conviction
A 2023 law makes a DUI conviction ineligible for Clean Slate erasure until 10 years after the person’s most recent conviction, even for a first offense.
2022
Per se suspensions extended to snowmobiles and ATVs
A 2022 law expanded the administrative per se statute to cover snowmobiles and all-terrain vehicles, matching the criminal DUI law.
Official sources
- Connecticut DMV — Driving Under the Influence (DUI)
- Connecticut OLR — Connecticut DUI Law (2016-R-0147)
- Connecticut OLR — Connecticut DUI Law (2014-R-0251)
- Connecticut OLR — Public Act Summary: An Act Concerning Ignition Interlock Devices (2014)
- Connecticut OLR — Connecticut DUI Law (2012-R-0279)
- Connecticut OLR — Criminal Pretrial Diversionary Programs (2016-R-0020)
- Connecticut Public Act 16-126 — Child Endangerment While Driving Under the Influence
- Connecticut General Statutes, Chapter 248
- Connecticut Judicial Branch Law Libraries — Connecticut Law About Driving Under the Influence
- Clean Slate Connecticut — Eligibility
- CTDOT Highway Safety Office — Connecticut’s Impaired Driving Law
- Connecticut Judicial Branch — Crime Victims’ Guide to the Adult Criminal Court
- Connecticut Judicial Branch — Divisions of Superior Court
- Connecticut Judicial Branch — CR-44, Pretrial Alcohol Education Program Application
- Connecticut Judicial Branch — Alcohol Education Program brochure
- OLR — Indictments, Informations, Arrest Procedure, and Pretrial Questioning (1997)
- OLR — Bill analysis, SB 1044 (2017), ignition interlock
- Connecticut Public Act 25-159 (sHB 7160)
- Connecticut OLR — Public Act Summary, PA 25-159
- Connecticut DMV — New Laws, October 2025
- Connecticut OLR — 2024 Acts Affecting Transportation
- Connecticut OLR — 2023 Acts Affecting Transportation
- Connecticut OLR — 2022 Acts Affecting Transportation
- Connecticut DMV — Pay Your License Reinstatement Fee
- Connecticut DMV — License Suspension
- Connecticut Judicial Branch — State Courthouses
- Connecticut Judicial Branch — JD and GA Town Listings
- Connecticut Judicial Branch — G.A. 1 at Stamford
- Connecticut Judicial Branch — G.A. 4 at Waterbury
- Connecticut Judicial Branch — G.A. 14 at Hartford
- Connecticut Judicial Branch — G.A. 23 at New Haven
Educational information, not legal advice. Connecticut law changes and every case is different. Confirm deadlines with Connecticut Department of Motor Vehicles, Administrative Per Se Unit and talk to a licensed Connecticut attorney about your situation.
Some details on this page are still being verified against official sources. Check the linked sources before relying on a specific number or deadline.
Last reviewed October 1, 2026.