Massachusetts Ignition Interlock OUI Laws

Information on Massachusetts OUI and Ignition Interlock Laws

When you are arrested for Operating Under the Influence (OUI) in Massachusetts, your license can be suspended in two different ways. They are independent of each other and must be attended to separately.

Administrative: This happens if you fail a breath test, or refuse to take one in the state of Massachusetts. Your license is confiscated immediately and will either be suspended or revoked, depending on your record of prior offenses. You will receive a temporary driving permit which will allow you to drive for 15 days to get your affairs in order.

Judicial: This occurs when you are sentenced by a court after a trial or plea agreement. Even if you are not convicted of OUI in Massachusetts court, it’s possible to still undergo an administrative suspension. If you want to challenge the administrative suspension, you must do so within 15 days of your arrest. If you do not, or if your challenge is unsuccessful, your license will be suspended for 30 days starting 16 days after your arrest.

Massachusetts has a lifetime lookback period, meaning that prosecutors can use any DUI conviction in your past, regardless of how many years ago it happened, to escalate your penalties. All multiple OUI offenders must have an ignition interlock (IID) installed. If you need to drive for work, you can apply for a hardship license. If you are eligible for a hardship license, you must use the IID for the period of the hardship license, and then two years after that. If you are eligible for license reinstatement, you must use the IID for two years after your license is reinstated. A court may also order the IID to be installed for any reason and can prescribe the length of time it must be used.

Fines and jail time are also possible sanctions for operating under the influence in Massachusetts. For an overview of OUI laws and regulations in Massachusetts, check here.


Every situation and state is unique, please consult with your attorney or your state licensing authority to confirm your requirements and obligations.

The information provided on this website does not, and is not intended to, constitute legal advice; instead, all information, content, and materials available on this site are for general informational purposes only. Information on this website may not constitute the most up-to-date legal or other information. This website contains links to other third-party websites for the convenience of our readers. Links from LifeSafer Ignition Interlock to other sites, or from other sites to the LifeSafer, do not constitute an endorsement by LifeSafer.  

Interlock Process

How do I get an interlock license?

  • Visit a Massachusetts Registry of Motor Vehicles (RMV) Hearings Officer for a hearing. The officer will explain what you need to do to get a hardship license or full reinstatement and give you the necessary forms. These forms must be notarized. Requirements can include an alcohol treatment program. For hardship, you will need a letter from your employer or proof of self-employment.

  • Return to the MA RMV Hearings Officer and submit the notarized affidavit(s) for approval of license reinstatement with an IID restriction.

  • Call LifeSafer Ignition Interlock at 800-634-3077 to schedule your ignition interlock installation. Ask about discounts and special offers!

  • Once the IID has been installed, bring the completed proof of installation to a Hearings Officer. A “Z” restriction will be added to your license, meaning you can only drive if an ignition interlock has been installed. You must pay the reinstatement fee and pass a learner’s permit exam, if applicable.

Interlock Cost

How much does an interlock cost in Massachusetts?

You can expect to pay about the national average of $3 a day in Massachusetts for an ignition interlock (IID). Everybody is cost-conscious, but the cheapest blow-and-go device is not necessarily the best value. You have to take into consideration the customer service you are getting, who is going to install the device, and the quality of the device itself.

Our IIDs go through a quality control process that is the best in the industry. Every unit is carefully tested and calibrated before it ever leaves the factory floor. Once it gets to your Massachusetts LifeSafer installation center, you will be working with highly skilled installation technicians who have the know-how to install an interlock on any vehicle and get it done right. And if you need help, our customer service department supports you throughout your program.

You won’t have to go it alone. With LifeSafer, you get the highest quality device, superior installation expertise, and great customer service. It’s the best value you can get in an interlock device and nobody comes close.

LifeSafer Ignition Interlock reviews from Trustpilot

Convenient LifeSafer interlock installers throughout Massachusetts