The Differences Between Colorado and Oregon’s Psilocybin Laws
Last reviewed and updated: June 24, 2026.
Key Takeaways
| Oregon Measure 109 | Licensed service centers operational; supervised sessions for adults 21+; NO personal possession outside licensed centers |
| Colorado Prop 122 | Personal possession + home cultivation legal for adults 21+ NOW; licensed healing centers being built out separately; also covers DMT, ibogaine, mescaline |
| Biggest difference | Colorado = legal to possess at home; Oregon = legal only at licensed service center |
| Session cost (OR) | Typically $1,000–$2,000 for full-day supervised session; not covered by insurance |
| Other states | Washington, Minnesota, Hawaii, California active legislation; Ann Arbor, Seattle, Cambridge deprioritized enforcement |
It’s an exciting time for psilocybin laws changing in America: On January 1, Oregon became the first state to legalize the adult use of psilocybin and will soon allow for dedicated psilocybin healing centers. Then, on January 4, psilocybin and other psychedelic drugs were effectively decriminalized in the state of Colorado following a November 2022 ballot initiative.
RELATED: Psychedelic Therapy Is Now Legal in Colorado Amid Political Divide
Slowly but surely, more jurisdictions are passing legislation related to the use of psychedelics and plant medicines. As different states create different sets of rules, though, it can be tough to keep track of what each one permits.
Exciting news: Two states have legalized psilocybin therapy for the first time ever. Click here to get on the waiting list for Oregon psilocybin therapy. And click here to get on the waiting list for Colorado psilocybin therapy.
The Differences Between Colorado and Oregon’s Psilocybin Laws
| Aspect | Colorado | Oregon |
| Legal Status | Decriminalized for personal use (possession, cultivation, sharing) | Legal for therapeutic use only |
| Effective Date | Decriminalization: May 2023; Therapy program: December 2024 (estimated) | January 1st, 2023 |
| Possession & Cultivation | Allowed for personal use (no specific quantity limits) | Not allowed outside of licensed facilities |
| Sales & Distribution | Not allowed | Not allowed for recreational use; allowed for licensed facilitators within therapy program |
| Therapy Program | In development; licensing and regulations for facilitators and facilities ongoing | Established (sort of); facilitators and facilities require licensing |
| Age Restriction | 21+ for possession and use | 18+ for therapy program participation |
| Local Opt-Out | Not allowed | Counties and cities can opt-out of allowing psilocybin therapy services |
| Other Psychedelics Included | Psilocybin, psilocin, ibogaine, mescaline, DMT | Psilocybin only |
| Enforcement | Law enforcement instructed to prioritize serious crimes; possession treated as a civil violation with fine | Decriminalized, treated as a violation with fine |
RELATED: Colorado Explores Synthetic Psilocybin for Mental Health Treatment
To help draw attention to some of the major differences between psilocybin laws in Oregon and Colorado, HealingMaps spoke with Courtney Barnes, a social justice attorney specializing in drug policy reform.
While working for the law firm Vicente Sederberg, Barnes was a lead drafter of the nation’s first voter-initiated psilocybin policy reform ordinance, Denver’s Psilocybin Decriminalization Initiative (I-301) in 2018. She also serves as a political advisor for Decriminalize Nature, and is general counsel for the Society for Psychedelic Outreach, Reform, and Education (SPORE).
“In 2019, Denver became the first city in the U.S. to decriminalize psilocybin via voter initiative. Since that time, I have been involved with the drafting of over a dozen different state and local psychedelics-related measures across the country,” says Barnes. She is not licensed to practice law in Oregon. But says she will be involved in the implementation of Proposition 122 in Colorado.
RELATED: Not Everyone’s Happy About the Changes to Colorado’s Psilocybin Bill
Psilocybin Laws In Oregon And Colorado: The Differences
Barnes says that Colorado and Oregon are fundamentally similar in their approach to regulating psilocybin. However, there are some material differences between the two states’ psilocybin laws.
“The biggest differences, in my opinion, are related to the compounds,” says Barnes. For example, Oregon’s measure is psilocybin specific, “whereas Colorado’s proposed regulatory system is structured to allow the addition of other psychedelic compounds like ibogaine and mescaline into its access model starting in 2026.”
RELATED: Are Magic Mushrooms Legal in Colorado?
This means that, in the future, people living in Colorado could have access to other drugs at psychedelic treatment centers. In Oregon, however, treatment centers can only use psilocybin.
The introduction of additional substances in Colorado won’t occur until the psilocybin program is running, according to Barnes. Both states require that people attending these centers be over the age of 21.
Another difference Barnes highlights is that Colorado’s ballot measure includes language around decriminalization. The adoption in Oregon was a more restrictive decriminalization approach — via a separate ballot, Measure 110.
In Oregon, Measure 109 proposed state regulations for psilocybin treatment centers. However, Measure 110 was introduced to decriminalize personal, non-commercial possession of all drugs. This includes cocaine, heroin, LSD, methamphetamine, and oxycodone.
Oregon is the only state to decriminalize all drugs. This means that, in Oregon, a person found to be in possession of a small amount of any drug, psychedelic or not, will not face criminal charges. Instead, he/she will receive a civil citation and a $100 fine — or an option to attend a state-funded addiction recovery center.
In Colorado, Proposition 122 was passed to decriminalize psychedelic plant medicines. This allows people over the age of 21 to possess and share psilocybin, psilocin, DMT, ibogaine, and mescaline (excluding peyote).
Oregon and Colorado also have different rules around whether or not municipalities can opt out of psilocybin legislation.
“Oregon also allows municipalities to ban the operation of psilocybin service centers whereas Colorado does not allow localities to totally opt out of the program,” says Barnes. “Colorado does, however, allow reasonable time, place, and manner restrictions on the operation of its to-be licensed facilities.”
Barnes imagines the product types offered in the two states may differ as well. However, she points out that this — and other questions around the two pieces of psilocybin laws — will remain unanswered until rulemaking occurs in Colorado.
RELATED: Oregon issues its first license to a psilocybin service center.
The Opportunities
The business opportunities within the pieces of legislation “are limitless,” says Barnes. There are some differences in the way each state will structure licensing and production.
In Colorado, psilocybin service centers are designed to be vertically integrated, says Barnes. This allows businesses to grow, manufacture, provide, and distribute psilocybin or natural medicine.
Oregon has created four different license types for each part of the supply chain. This includes specific licenses for manufacturing, laboratories (for lab testing), service centers, and facilitators. Licensed businesses will be able to engage in the manufacturing, transportation, delivery, and the provision of psilocybin services.
There will also be plenty of opportunities for people operating ancillary businesses, such as integration coaching and data tracking.
“Now that Colorado allows people to essentially grow their own psilocybin, there’ll be businesses that are going to be able to support that activity as well,” says Barnes. “With the influx of this new industry, there will be new cultural dynamics — from food to tourism to fashion. It’s going to have a ripple effect across the world, with people traveling to Colorado and Oregon to have these experiences.”
Related: Colorado Certifies First 51 Psilocybin Facilitators
Find a provider: Gleam Medical Spa
See also: — our psilocybin retreats guide.
Colorado vs Oregon: Where Each Program Stands in Mid-2026
Both Oregon’s Measure 109 and Colorado’s Proposition 122 have moved from ballot victories into operational reality — but at very different paces and with different structural approaches.
Oregon Measure 109: licensed service centers now operational. Oregon began licensing psilocybin service centers in 2023, and by 2025–2026 a growing number of licensed facilitators and service centers are operating statewide. The program requires: a licensed service center (physical location), a licensed facilitator (who must complete an approved training program), and adult clients 21+ with no medical referral required. Sessions are supervised but not medical — this is a wellness model, not a therapy model. Oregon does not permit take-home psilocybin; all use must occur at a licensed center. The Oregon Health Authority has faced criticism for slow licensing rollout and high facilitator training costs, but the program is functional and the first legal psilocybin retail market in U.S. history.
Colorado Proposition 122: a broader but slower build. Colorado’s approach is more expansive than Oregon’s: Prop 122 legalized personal possession and home cultivation of psilocybin (and eventually other natural psychedelics including ibogaine, DMT, and mescaline) for adults 21+, regardless of licensed facilities. This makes Colorado’s law more permissive for personal use — you don’t need a service center to legally grow and use psilocybin in Colorado. The licensed healing center framework (Colorado’s equivalent of Oregon’s service centers) is being built out by the Colorado Department of Regulatory Agencies. Licensed healing centers are expected to be operational by late 2024 into 2025–2026. Colorado also created a Natural Medicine Advisory Board to guide implementation and future expansion to other plant medicines.
Key practical difference: personal possession. The single most important difference for most readers: in Colorado, personal possession and home cultivation are legal for adults 21+ right now, regardless of whether licensed healing centers are operational. In Oregon, personal possession outside a licensed service center is still illegal — Measure 109 created a licensed service model only, not personal possession rights. If you are in Colorado, you can legally possess psilocybin mushrooms. If you are in Oregon, legal access requires going through a licensed service center.
Frequently Asked Questions
Can you legally possess psilocybin mushrooms in Oregon?
Not outside a licensed service center. Oregon’s Measure 109 created a licensed service center model — legal access to psilocybin requires a supervised session at a licensed facility with a licensed facilitator. Personal possession of psilocybin mushrooms outside that framework remains illegal in Oregon. This is a key distinction from Colorado, where Proposition 122 legalized personal possession and home cultivation for adults 21+ regardless of licensed facilities. Oregon residents who want legal personal possession access would need to travel to Colorado (and use it there — transporting across state lines is still federally illegal).
Can you legally possess psilocybin mushrooms in Colorado?
Yes — Proposition 122 legalized personal possession and home cultivation of psilocybin mushrooms for adults 21+ in Colorado. You may also use psilocybin in a private setting (not in public, not to sell). The law also legalized possession of DMT, ibogaine, and mescaline from natural sources. Selling psilocybin outside of licensed healing centers is not legal. Transporting psilocybin across state lines — including bringing it into Colorado from another state or taking it out — remains federally illegal. Licensed healing centers are being built out separately and will provide a supervised, commercial access model in addition to personal possession rights.
What other states are considering psilocybin legalization?
As of 2026, several states are actively considering psilocybin reform: Washington state has had decriminalization and therapy model legislation introduced; Minnesota has had psilocybin therapy bills advance in committee; Hawaii has repeatedly passed psilocybin research bills; California passed a psilocybin personal possession bill (SB 58, signed 2023) but Governor Newsom vetoed a broader therapy framework bill. Massachusetts, New Mexico, and several other states have introduced legislation. At the city level, Ann Arbor, Cambridge, Seattle, and multiple other cities have deprioritized psychedelic enforcement. The trend toward state-level reform is accelerating, though each state’s approach (service center model vs personal possession vs decriminalization) differs.
How much does a psilocybin session at an Oregon service center cost?
Oregon psilocybin service center sessions typically range from $500 to $3,500+ per session, depending on the facilitator, location, and session length. Most full-day sessions (which include preparation, the psilocybin experience, and integration) are in the $1,000–$2,000 range. The cost is not covered by insurance. Some service centers offer sliding scale pricing or scholarships for low-income clients. The high cost reflects facilitator training requirements, licensing fees, and the time-intensive nature of supervised sessions (a full psilocybin experience takes 4–6 hours). Colorado’s healing center framework, once fully operational, is expected to be broadly similar in pricing to Oregon’s model.
