Legal Therapeutic Program Updated 2026-05-29

Psilocybin Laws in Oregon

Oregon became the first state in the United States to legalize psilocybin therapy when voters passed Measure 109 in November 2020. Licensed psilocybin service centers began operating in early 2023, making Oregon the first state where adults can legally access supervised psilocybin experiences without a medical diagnosis.

Official Oregon status

Licensed service-center access only

Oregon is operational, but the official source trail keeps the boundary tight: adults use psilocybin through licensed facilitators and licensed service centers, not retail sales, take-home products, or home cultivation.

What to verify

Use OHA's licensee tools before relying on a service center, facilitator, manufacturer, or worker permit claim.

What not to assume

Oregon does not make personal possession or cultivation outside the licensed service model broadly legal.

Oregon Health Authority access psilocybin services page
OHA

Access rules

Oregon says psilocybin services include preparation, administration, and integration with a licensed facilitator; the administration session happens at a licensed service center.

Open official source
Oregon Psilocybin Services licensee and worker permit status page
OHA

License lookup

OHA directs people to contact licensed service centers directly and to use the OPS Licensee Directory to identify licensed service centers.

Open official source

Current Legal Status

Legal Therapeutic Program

Psilocybin is legal for supervised therapeutic use in Oregon through licensed service centers. Adults 21 and older may access psilocybin services at a licensed facility with a licensed facilitator. No medical diagnosis or prescription is required. Personal possession and cultivation outside licensed facilities remains illegal.

Key Legislation

Measure 109 (2020) — the Oregon Psilocybin Services Act — authorized the Oregon Health Authority (OHA) to license manufacturers, service centers, and facilitators. Rules were finalized in late 2022 and service centers began accepting clients in January 2023.

Therapeutic Programs

Oregon's program operates through licensed service centers. A session typically involves preparation, the administration session at a licensed service center, and integration follow-up. Because license and operating status can change, use the Oregon Psilocybin Services Licensee Directory before relying on a specific service center or facilitator.

Clinical Trials

Oregon Health & Science University (OHSU) has conducted psilocybin research. Check ClinicalTrials.gov for currently enrolling studies in the Portland area.

Advocacy Organizations

Oregon Psilocybin Society, Healing Advocacy Fund, Oregon Health Authority (regulatory body), MAPS.

Related Resources

Directory in Oregon

View all Oregon directory listings →

People in Oregon

Societies & Organizations in Oregon

See how Oregon compares to neighboring states and find therapy options for residents:

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