1 December, 2019

Status: Legal


2008: Decriminalisation
2012: Medical cannabis legalised
2016: Recreational cannabis legalised (effective 2017)
2018: Commercial sales begin

Policy Framework:

Expungement: attached to legislation

  • Must be at least 21-years-old to consumer, purchase and possess cannabis;
  • Recreational users can possess up to 10oz (283g) in the homes at a time provided it is locked up;
  • Can carry up to 1oz (28g) on their person at a time;
  • An excise tax of 10.75% on all cannabis-containing products;
  • Consumption of cannabis products in public is prohibited;
  • Individuals above 21-years-of-age can grow up to six plants in their home, in a household with more than one adult, a maximum of only 12 plants is permitted per household;
  • Driving under the influence of cannabis is illegal;
  • Landlords are not permitted to prohibited cannabis consumption methods other than smoking;
  • Cultivation at home is permitted - up to six plants;
  • Distribution without a license to do so is punishable by up to 15 years in prison and fines of up to $US200,000.


  • Between 2005 and 2017, cannabis use disorder in people over the age of 12 decreased from 2.4% to 2.3%;
  • In a 2019 survey, the prevalence of self-reported driving under the influence was 34.3%. Overall, 7.2% of the adult population drove under the influence of marijuana in the past 30 days and 11.3% of adults rode with a marijuana-using driver in the past 30 days;
  • Between November 20, 2018, and January 20, 2019, consumers purchased nearly $US24 million of recreational marijuana products and the state received about $US4 million in tax revenue;
  • Economic projections suggest marijuana will increase Massachusetts state revenue by about $US215.8 million in the first two years of retail sales. Sales tax revenue is expected to be higher in the second year ($SU154.2 million) compared with the first year ($US61.6 million);
  • As of late January 2019, the state has nine stores licensed to sell recreational marijuana.


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