Is psilocybin legal in South Dakota?
Is psilocybin legal in South Dakota?
No. Psilocybin is a controlled substance in South Dakota with no state program, pilot or reform. Possession is a criminal offense.
As of 30 August 2026, psilocybin remains a Schedule I controlled substance under the federal Controlled Substances Act. It has not been approved by the FDA and has not been rescheduled by the DEA. A state program protects you under state law only.
- Status in South Dakota
- Illegal
- Federal status
- Schedule I
- Key law
- HB 1099 (2026)
- Nearest legal access
- Colorado
What the law says in South Dakota
Illegal today, but a 2026 law will automatically legalize a synthetic psilocybin medicine the moment the FDA approves it and the DEA reschedules. No state access exists until then.
Key law: HB 1099 (2026).
The trigger law, and why it does nothing yet
South Dakota has passed a statute that changes psilocybin’s status automatically once two federal events occur: the FDA approves a psilocybin medicine, and the DEA reschedules it. Neither has happened. Until both do, the law authorizes nothing at all — which is why headlines saying South Dakota has “legalized psilocybin” are misleading.
We track those two events on the federal policy page.
If you are looking for legal access
The nearest legal option to South Dakota is Colorado
Colorado runs a licensed supervised-access program with no residency requirement, so people do travel for sessions. Expect roughly $1,000–$3,500 out of pocket — no insurer covers it.
You cannot lawfully bring psilocybin back to South Dakota. Possession outside the licensed system is a crime in Colorado too, and carrying it across state lines is a federal offense.
Sources for this entry
Common questions
Psilocybin in South Dakota
- Is psilocybin legal in South Dakota?
- No. Psilocybin is a controlled substance in South Dakota with no state program, pilot or reform. Possession is a criminal offense. As of 30 August 2026, psilocybin remains a Schedule I controlled substance under the federal Controlled Substances Act. It has not been approved by the FDA and has not been rescheduled by the DEA.
- Where is the nearest place to South Dakota that psilocybin is legal?
- Colorado. Neither Oregon nor Colorado has a residency requirement, so people do travel for supervised sessions. You cannot legally bring psilocybin home — possession outside the licensed system is a crime in both states, and transporting it across state lines is a federal offense.
- Does South Dakota law override federal law on psilocybin?
- No. Psilocybin remains a Schedule I controlled substance under the federal Controlled Substances Act, and federal law applies in every state regardless of state programs. A state license protects you under state law only.
Compare
Other states with illegal
Same legal category, different detail. The differences matter.
What people ask next
- When will psilocybin be available on prescription? — the pipeline, by clinical phase.
- How does it compare with ketamine and MDMA? — one of those is already approved.
- What can I actually do in the meantime? — what the evidence supports today.
This is not legal advice. Drug law changes quickly, applies differently depending on quantity and circumstance, and federal law applies everywhere regardless of state status. Entry last reviewed August 30, 2026.
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Free to quote and cite, with attribution. If a figure here moves, the review date on this page moves with it — cite the date you used.
Psilocybin Research. (2026). Is psilocybin legal in South Dakota. Last reviewed August 30, 2026. https://psilocybinresearch.com/psilocybin-legal-in-south-dakota