Connecticut Ignition Interlock Laws

Connecticut DUI Laws & Requirements

Connecticut interlock laws require that anyone convicted of a DUI serve a suspension of 45 days, or until their 21st birthday, whichever is longer. After that time an ignition interlock is required for one to three years, depending on prior DUI offenses. You are arrested with a DUI if your blood alcohol concentration (BAC) registers .08 or above on a blood-alcohol test. Those under 21 years old only need to register .02 or over.

NOTE: When you are arrested for a DUI in Connecticut your license can be suspended in two different ways.

Connecticut Administrative Per Se: This only happens if you fail a breath test, or refuse to take one. The suspension period generally begins 30 days after the arrest. You will receive a Notice of Suspension from the DMV telling you the period of suspension. Suspension in Connecticut can be from six months to six years, depending on the driver’s age, BAC at the time of arrest, and prior record of offenses.

Connecticut Criminal Court: This occurs when you are sentenced by a Connecticut court after a trial or plea agreement. You will possibly encounter both types of suspension. You will only be eligible for an interlock program after a criminal conviction. If you are convicted in court for a first or second DUI offense, you can apply for an interlock after a 45-day suspension (unless criminal penalties dictate otherwise). If you are under 21, the suspension lasts until your 21st birthday. You must serve a minimum of 48 hours in jail, or perform 100 hours of community service and pay a fine. For a 2nd or 3rd offense, in addition to higher fines, you may face vehicle impound or confiscation and permanent license revocation. For a 2nd offense within 10 years, you must have an ignition interlock installed for three years after the 45-day suspension period.

State Ignition Interlock Application