Recent Massachusetts OUI Law Changes

    What changed, when it took effect, and who it affects.

    1. July 1, 2021

      Interlock for some first offenders with a hardship license

      Chapter 227 of the Acts of 2020 requires certain first-time OUI offenders to install an ignition interlock as a condition of a hardship license.

    Educational information, not legal advice. Massachusetts law changes and every case is different. Confirm deadlines with Massachusetts Registry of Motor Vehicles (RMV) and talk to a licensed Massachusetts 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.