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Massachusetts DUI Laws

DUI Defense in Massachusetts

Statutes, Penalties, and Defense Strategies

What you are facing, the deadlines that bind you, and the questions an attorney needs to answer — under Massachusetts (MA) DUI law.

BAC Limit

0.08

Enhanced BAC

0.20

Higher penalties above this

Lookback Period

Lifetime

Prior offenses count within

⚠

15 days-Day DMV Hearing Deadline

Massachusetts gives you 15 days days from the arrest to ask for a DMV hearing. This is the

administrative hearing

Plain language

A DMV review of the license suspension — separate from the criminal court case, with its own paperwork and deadline.

that decides the license suspension. Miss the deadline and the suspension starts on its own, even if the criminal case ends in dismissal later.

First Offense Penalties in Massachusetts

Jail TimeUp to 2.5 years
Fines$500 – $5,000
License Suspension1 year (45-day 'hardship license' available after disposition)
Ignition Interlock

Plain language

A breath-tester wired into the car ignition. The car will not start without a clean sample.

Required for 2 years if BAC 0.15+

Implied Consent and Test Refusal

Massachusetts has an

implied consent law

Plain language

By driving on the state's roads, you have already agreed to a chemical test if an officer has probable cause to think you are impaired.

like every state. The test can be breath, blood, or urine. Refusing carries its own penalty, listed below.

Refusal Penalty

180-day license suspension

Massachusetts-Specific Detail

Massachusetts uses a lifetime lookback, a DUI from 30 years ago counts as a prior offense. This is one of the harshest lookback policies in the nation. The state calls DUI 'OUI' (Operating Under the Influence).

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DUI Defense Playbook — $127

26 questions that change how your next attorney meeting goes, a case stage roadmap, red flag checklist, and a case progress scorecard. Instant PDF download — calibrated for Massachusetts DUI defendants.

Get the DUI Playbook — $127Read the Free DUI Guide

Other Massachusetts defense topics

Facing a different charge in Massachusetts? Penalty ranges, enhancements, and defense questions for related crimes:

Drug Possession in MassachusettsAssault in MassachusettsDomestic Violence in Massachusetts

Important: This page provides general legal information about Massachusetts DUI laws as of the date of publication. Laws change frequently. This is not legal advice. For guidance specific to your case, speaking with a Massachusetts-licensed attorney is one option, or take the free Masked Researcher’s First Read to see where your case stands.