DUI in Massachusetts
State-specific overview · Criminal Law
Massachusetts treats DUI seriously with mandatory license suspension and ignition interlock devices for most convictions.
How Massachusetts treats DUI
A first DUI conviction in Massachusetts results in a mandatory one-year license suspension and installation of an ignition interlock device for at least two years. The state uses a 0.08% blood alcohol content (BAC) threshold for drivers age 21 and over, with lower thresholds for commercial drivers and those under 21. Massachusetts also allows the state to pursue both criminal and civil license suspension proceedings, meaning your license can be suspended even before criminal trial.
The general definition of DUI
Driving under the influence of alcohol or drugs, a serious criminal offense.
DUI stands for Driving Under the Influence and means operating a vehicle while impaired by alcohol, drugs, or both. You can be charged with DUI even if your blood alcohol level is below the legal limit if your driving is noticeably impaired. Penalties vary by jurisdiction and whether it's a first or repeat offense, but typically include fines, license suspension, jail time, and mandatory alcohol education programs. A DUI conviction has lasting effects on insurance rates, employment, and your driving record.
Read the full DUI entry →This page is a plain-English reference and is not legal advice. State laws change frequently. For specific situations consult a licensed attorney in Massachusetts.