A Century of Cannabis Policy
Oregon has shaped American cannabis policy more than any other state. It was the first to decriminalize marijuana possession in 1973, the second to legalize medical cannabis in 1998, and among the first wave of states to approve recreational use in 2014. Oregon also became the first state to legalize psilocybin therapy in 2020 and the first to attempt broad drug decriminalization — a policy it later partially reversed. The timeline below documents every major milestone.
Oregon Outlaws Cannabis
Oregon became one of the earliest states to prohibit cannabis, criminalizing marijuana possession and sale. The ban would remain in place for half a century before Oregon pioneered a dramatically different approach.
First State to Decriminalize
Under Governor Tom McCall, Oregon became the first state in the nation to decriminalize marijuana possession. The Oregon Decriminalization Bill reduced possession of up to one ounce from a criminal offense to a violation carrying a maximum $100 fine — no jail time, no criminal record. This landmark legislation predated all other state decriminalization efforts and influenced a wave of reform across the country in the late 1970s.
Brief Recriminalization
The Oregon Legislature passed HB 3643, which recriminalized possession of less than one ounce of marijuana, making it a misdemeanor again. The move reflected a national backlash against drug reform in the mid-1990s, but Oregon voters would soon push back decisively.
Measure 67 — Medical Cannabis
Oregon voters approved Measure 67 with 54.6% support, making Oregon the second state to legalize medical cannabis after California. The Oregon Medical Marijuana Program (OMMP) allowed patients with qualifying conditions to grow and possess cannabis with a physician's recommendation. The program would eventually grow to serve over 78,000 patients at its peak.
Medical Program Expansion
The legislature expanded medical cannabis limits, increasing the amount patients could possess and the number of plants they could cultivate. These expanded limits — 24 ounces of usable cannabis and 6 mature plus 12 immature plants — remain among the most generous medical allowances in the nation today.
Measure 91 — Recreational Legalization
Oregon voters approved Measure 91 with 56% support, legalizing recreational cannabis for adults 21 and older. The measure established a 17% state excise tax, assigned regulation to the Oregon Liquor Control Commission, and allowed home cultivation of up to 4 plants per household. Oregon became the third state (after Colorado and Washington) to open a recreational market.
Early Sales Begin
Through emergency legislation, Oregon allowed existing medical dispensaries to begin selling limited recreational products — flower and seeds only — to adults 21 and older. This "early sales" period generated immediate tax revenue and provided legal access more than a year before the full licensed retail system launched.
First Licensed Recreational Retail
The first OLCC-licensed recreational dispensaries opened their doors, marking the launch of Oregon's fully regulated adult-use market. The state initially imposed no cap on the number of licenses, a decision that would later contribute to the oversupply crisis.
OLCC Pauses New Licenses
Facing a rapidly growing oversupply of cannabis, the OLCC temporarily paused the acceptance of new producer license applications. The move was the first major acknowledgment that Oregon's unlimited licensing approach had created a structural surplus that the market could not absorb.
Residency Requirement Expires
Oregon's residency requirement for cannabis license holders expired on January 1, 2020, opening the market to out-of-state investors and operators. The change reflected both legal pressure and the practical reality that capital was increasingly flowing across state lines.
Measure 109 & Measure 110
Oregon voters made history twice on the same ballot. Measure 109 passed with 55.75% support, making Oregon the first state to legalize supervised psilocybin therapy. Measure 110 passed with 58.5% support, decriminalizing possession of small amounts of all drugs and redirecting cannabis tax revenue to treatment services — a first-in-the-nation approach that would prove deeply controversial.
OLCC Renamed
HB 2111 officially renamed the Oregon Liquor Control Commission to the Oregon Liquor and Cannabis Commission, formally recognizing cannabis regulation as a co-equal mission alongside alcohol oversight.
First Psilocybin Service Centers
Oregon's licensed psilocybin service centers began operating, becoming the first legal psilocybin facilities in the United States. Supervised sessions for adults 21 and older began at centers across the state, offering psilocybin-assisted experiences without requiring a medical diagnosis.
Permanent License Moratorium
HB 4121 established a permanent moratorium on new cannabis production licenses, codifying the temporary pause that had been in effect since 2018. New market entry is now only possible by purchasing an existing license.
Measure 110 Partially Reversed
HB 4002 partially reversed Measure 110's drug decriminalization provisions, recriminalizing public use and possession of certain controlled substances while maintaining expanded treatment funding. The reversal reflected widespread concern about the visible impacts of open drug use in Oregon's cities.
New OLCC Leadership
Tara Wasiak became the new executive director of the OLCC, succeeding Craig Prins. Wasiak inherited an agency navigating the oversupply crisis, the bourbon-hoarding scandal's aftermath, and the integration of psilocybin oversight responsibilities.
Trump Rescheduling Executive Order
President Trump signed an executive order directing the DEA to expedite cannabis rescheduling from Schedule I to Schedule III. While not immediately changing Oregon's market, the order signaled a potential federal shift that could eventually affect interstate commerce, banking access, and tax treatment under Section 280E.
Oregon Cannabis By the Numbers
Key Themes in Oregon's Cannabis History
- Pioneer state. Oregon has consistently been first or among the first on cannabis reform — first to decriminalize (1973), second to legalize medical (1998), first to legalize psilocybin (2020), and first to attempt broad drug decriminalization.
- Voter-driven reform. Every major cannabis milestone in Oregon has come through the ballot initiative process, reflecting a direct-democracy tradition that has empowered voters to lead where the legislature would not.
- The oversupply problem. Oregon's decision not to cap production licenses created a structural surplus that has devastated wholesale prices and threatened the viability of small operators. See The Oversupply Crisis for the full analysis.
- Experimentation and correction. Oregon's willingness to experiment — with decriminalization, unlimited licensing, drug policy reform — has sometimes required course corrections, as with the partial reversal of Measure 110 in 2024.
What Comes Next
Oregon's cannabis market faces an uncertain but consequential period. The permanent license moratorium, potential federal rescheduling, interstate commerce legislation, and the maturation of the psilocybin program will all shape the next chapter. See Recent Legislation for current bills under consideration.
Oregon became the first state to decriminalize marijuana possession in 1973 and the second state to legalize medical cannabis in 1998. Voters approved recreational legalization via Measure 91 in November 2014 with 56% support.
Oregon Secretary of State — Elections Division
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