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Massachusetts · 194th Legislature (2025-2026) · Bill

H 4200: An Act authorizing a pilot for the use of psychedelics in licensed treatment facilities

In committee Official data

  1. Introduced
  2. In committee
  3. Passed one chamber
  4. Passed both chambers
  5. Enacted

Last official action: ·Record last updated:

Plain-language summary

H 4200 is a bill introduced in the Massachusetts House on March 27, 2025. According to its official title, it concerns: An Act authorizing a pilot for the use of psychedelics in licensed treatment facilities. Primary sponsor: Jim O'Day (Democratic). It lists 1 additional sponsor. Most recent recorded action (July 23, 2026): Committee recommended bill ought to pass and referred to the committee on House Ways and Means.

Generated automatically from the official title, sponsor list, and status record only. It does not characterize the bill’s purpose or effects. How summaries are written

Official summary

Abstract published by the legislature (via Open States). Text as published by the legislature; reproduced verbatim.

By Representative O'Day of West Boylston, a petition (subject to Joint Rule 12) of James J. O'Day for legislation to authorize a pilot program for the use of psychedelics in certain licensed treatment facilities. Mental Health, Substance Use and Recovery.

Sponsors

Sponsors by party (alphabetical): Democratic 2

NameRolePartyChamberDistrict
Jim O'DayPrimary sponsorDemocraticHouse14th Worcester
Sean GarballeyCo-sponsorDemocraticHouse23rd Middlesex

“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.

Recent official actions

  1. Committee recommended bill ought to pass and referred to the committee on House Ways and Means
  2. Reporting date extended to Thursday, December 31, 2026
  3. Reported favorably by committee and referred to the committee on Health Care Financing
  4. Reporting date extended to Wednesday, March 18, 2026
  5. Hearing scheduled for 11/10/2025 from 01:00 PM-05:00 PM in A-2
  6. Senate concurred
  7. Reported, referred to the committee on Joint Rules, reported, rules suspended and referred to the committee on Mental Health, Substance Use and Recovery
  8. Referred to the committee on House Rules

Sources

  1. Open States / Plural (data from the official legislature website)
  2. Official legislature source