City-level decriminalizationReviewed May 15, 2026

Is Psilocybin Legal in Massachusetts?

Massachusetts has local decriminalization activity in specific cities, but statewide law has not broadly legalized psilocybin. City policy generally changes enforcement priority; it does not create a commercial access system.

Massachusetts landmark illustration with psilocybin mushroom motifs - is psilocybin legal in Massachusetts
Status
City-level decriminalization
Last reviewed
May 15, 2026
Cities tracked
4
Active bills
1

Key facts

  • Federal law still lists psilocybin as a Schedule I controlled substance in every U.S. state.
  • Massachusetts's page was last reviewed on 2026-05-15.
  • Local decriminalization in Massachusetts applies only where the city policy says it applies.
  • 4 city-level moves are tracked on this page.
  • This page is educational journalism, not legal advice.
  • It does not provide sourcing, buying, or cultivation guidance.

Notable recent moves

Massachusetts's most important moves are local: Somerville (2021), Cambridge (2021), Northampton (2021), Easthampton (2021).

City-level decriminalization usually deprioritizes enforcement and does not authorize retail sales or statewide possession.

Active bills

NameChamberStatus
Natural psychedelic substances ballot and legislative proposalsStatewide / General CourtReform proposals remain politically active after recent ballot debate.

Decriminalized cities

  • Somerville (2021)
  • Cambridge (2021)
  • Northampton (2021)
  • Easthampton (2021)

Frequently asked questions

Is psilocybin legal in Massachusetts?
No broad adult-use legalization is in effect in Massachusetts as of last review. Some local or research activity may exist, but state and federal restrictions still matter.
Can I be prosecuted for psilocybin possession in Massachusetts?
Possession can still create legal risk, especially outside a licensed or otherwise legally protected context. Ask a qualified Massachusetts attorney for advice on a real situation.
Does decriminalization in Somerville make psilocybin legal statewide?
No. A city policy in Somerville does not legalize psilocybin across Massachusetts and usually does not create a lawful sales system.
Is there legal psilocybin therapy in Massachusetts?
Massachusetts does not currently operate an Oregon-style statewide psilocybin services system as of last review.
Where should I check the latest Massachusetts rules?
Start with official state statutes, agency pages, and local government notices. This page is an educational snapshot reviewed on 2026-05-15.

Sources

Educational information only. Not legal advice, medical advice, or sourcing guidance. Verify current law with official state sources and a qualified attorney.