Psilocybin Laws in South Dakota
South Dakota became one of the most surprising 2026 stories: in March 2026, the state passed psilocybin legislation focused on clinical application research — a sharp reversal from a state historically known for some of the strictest drug laws in the country. Personal possession remains a felony, but a research pathway now exists.
Current Legal Status
Clinical Research Framework Passed (March 2026)
Psilocybin remains a Schedule I controlled substance under South Dakota law for general personal use. The March 2026 legislation creates a clinical research framework allowing licensed institutions and qualifying medical researchers to study psilocybin for therapeutic application. Personal possession outside the research framework is still a felony.
Key Legislation
March 2026 — South Dakota passed state-level psilocybin legislation establishing a clinical application research framework. The bill emerged from veteran-advocacy coalitions and rural-mental-health framing, surprising observers who had not expected meaningful psilocybin movement out of South Dakota in 2026.
Therapeutic Programs
South Dakota's framework is research-only as of April 2026. Supervised therapeutic sessions outside an approved research protocol remain illegal. The Department of Health is developing rules for institutional research approvals.
Clinical Trials
South Dakota's new framework opens the door for Sanford Health and the University of South Dakota Sanford School of Medicine to apply for research approvals. Check ClinicalTrials.gov for South Dakota site enrollments as the framework rolls out through late 2026.
Advocacy Organizations
Veteran-advocacy coalitions drove the 2026 legislation. Healing Advocacy Fund tracks state-level reform.
Related Resources
See how South Dakota compares to neighboring states and find therapy options for residents: