Massachusetts Marijuana Laws (2026)
Is marijuana legal in Massachusetts? Complete guide to Massachusetts cannabis laws including possession limits, penalties, medical program details, and what happens if you're charged.
Massachusetts Marijuana Status at a Glance
Is Marijuana Legal in Massachusetts?
Marijuana in Massachusetts is currently: Legal (recreational)
Massachusetts legalized recreational marijuana in 2016
Massachusetts Marijuana Possession Penalties
| Amount | Penalty |
|---|---|
| Small Amount | Legal (up to 1 oz in public, 10 oz at home) |
| Large Amount | Over 1 oz in public: civil fine |
Massachusetts Medical Marijuana Program
Massachusetts has an active medical marijuana program. Qualifying patients with a valid medical marijuana card are permitted to possess and use cannabis for approved medical conditions. Possession limits and qualifying conditions vary — check with the Massachusetts Department of Health for current program details.
Recreational Marijuana in Massachusetts
Massachusetts has legalized recreational marijuana for adults 21 and older. Adults may legally purchase cannabis from licensed dispensaries and possess up to the legal limit. Using marijuana in public, driving under the influence of marijuana, and providing marijuana to minors remain illegal.
Marijuana DUI in Massachusetts
Even in states where marijuana is legal, driving under the influence of cannabis is a criminal offense in Massachusetts. Law enforcement can charge you with DUI/DWI if you are impaired while driving, regardless of whether marijuana is legal in the state. There is no universally agreed-upon THC blood level equivalent to alcohol's 0.08% BAC — impairment is assessed by officers and drug recognition experts.