City of Oakland California. Burns, Ryan (October 18, 2023). "Eureka City Council Unanimously Decriminalizes Psychedelic Mushrooms and Other Entheogenic Plants". Jordan, Jerilyn (January 12, 2021). "Washtenaw County Says Cases Involving Natural Psychedelics Will Not Be Charged". Adlin, Ben (January 30, 2025). "Washington's Third Largest City Approves Psychedelics Decriminalization Policy". TJM Staff (March 9, 2023). "Inbox: Amherst Town Council Secretly Passed Decriminalization Measure". Sudborough, Susannah (May 19, 2023). "Salem decriminalizes psilocybin, the 'magic' chemical in magic mushrooms". Adlin, Ben (February 7, 2024). "Eighth Massachusetts City Adopts Psychedelics Decriminalization Policy, Also Pushing Changes To Pending State Ballot Initiative". Cite error: The named reference legalized was invoked however never defined (see the help page). Esther Honig (May 7, 2019). "A Growing Push To Loosen Laws Around Psilocybin, Treat Mushrooms As Medicine". Alexis Reliford (June 9, 2019). "AOC Wants It To Be Easier To study Magic Mushrooms & Other Psychedelics". Kyle Jaeger (November 29, 2019). "Nearly 100 Cities Are Considering Decriminalizing Psychedelics, Map Shows".

In May 2018, President Donald Trump signed the fitting to Try Act, with sure doctors suggesting that it permits terminally ill patients to make use of psychedelics for therapy. In October 2018, the Food and Drug Administration granted psilocybin "breakthrough therapy" status for research. Decriminalization advocates have cited analysis that suggests that the drug is non-addictive and causes a low quantity of emergency visits when in comparison with other unlawful drugs. Other analysis has indicated the potential useful use of psilocybin in treating treatment-resistant depression and nicotine dependence. Advocates have additionally claimed that decriminalization would redirect law enforcement's consideration and limited sources from policing non-public psychedelic usage, to higher priorities affecting the general public (e.g. violent crime). In May 2019, Denver, Colorado, grew to become the primary city within the United States to decriminalize psilocybin mushrooms after a ballot initiative narrowly received with 50.6% of the vote. The initiative did not legalize mushrooms but prohibited Denver from spending any resources to prosecute individuals for their use or possession.

Renda, Matthew (2021-06-02). "California Senate Approves Psychedelic Decriminalization Bill". Jaeger, Kyle (2021-06-29). "California Lawmakers Approve Bill To Legalize Psychedelics Possession In Committee". Jaeger, Kyle (2021-07-14). "California Bill To Legalize Psychedelics Possession Advances Again, With New Amendments That Add Limits". Cadena, Monica (2022-12-19). "New Bill Tries to Decriminalize Psychedelics in California-Again". Jaeger, Kyle (2022-12-19). "California Senator Files Revised Psychedelics Legalization Bill For 2023-Leaving Out LSD, MDMA And Other Synthetics". Jaeger, Kyle (2021-08-26). "California Bill To Legalize Psychedelics Possession Put on Pause Until 2022". Marijuana Moment. Margolin, Madison (2022-01-07). "Washington State Lawmakers Consider a Psilocybin Legalization Bill". Jaeger, Kyle (2023-01-09). "Lawmakers Are Already Pursuing Psychedelics Legislation In Nearly A Dozen States For 2023". Marijuana Moment. Shepherd, Tiah (September 7, 2023). "California lawmakers approve psychedelics decriminalization invoice". Herrington, A. J. (2023-09-08). "California Senate Passes Amended Psychedelics Legalization Bill". Jarow, Oshan (2024-07-21). "How should we promote psychedelics?". Larson, Shannon; Lazar, Kay; Huynh, Anjali (2024-11-06). "Mass. voters reject Question 4, blocking decriminalization of sure psychedelics". Kyle Jaeger (January 22, 2019). "Most Oregon Voters Favor Legalizing Psilocybin Mushrooms For Medical Use, Poll Finds". The brand new York Times. Edward Thomas (May 21, 2020). "Poll Indicates America's Growing Acceptance Of Psilocybin Mushrooms". McPadden, Mike (2020-09-03). "3 in 5 Voters in Washington DC Are Down to Decriminalize Psychedelics, New Poll Shows". Jaeger, Kyle (2020-09-02). "Three-In-Five DC Voters Support Psychedelics Decriminalization Initiative, New Poll Finds". Kreps, Daniel (2020-11-04). "Oregon Decriminalizes All Drugs, While D.C. Decriminalizes Psychedelics". UC Berkeley Center for the Science of Psychedelics (BCSP).

In November 2020, California Senator Scott Wiener introduced a invoice to decriminalize psychedelics such as psilocybin, ayahuasca for sale, ibogaine, and LSD. May 2021, it was cleared by the Senate Appropriations Committee and accredited by the California Senate. July 2021, it was cleared by the Assembly Health Committee. In December 2022, it was re-launched in a barely modified type as Senate Bill 58, which doesn't include MDMA or LSD, which had been both included in the sooner try beneath SB519. In September 2021, Michigan senators Jeff Irwin and Adam Hollier introduced SB631, which might create exemptions within the Michigan Health Code permitting personal and communal use, possession, cultivation, transportation and supply of naturally occurring substances. It is the first of "Decriminalize Nature" led efforts that might permit financial achieve for companies that make the most of these substances. SB 631 was assigned to the Michigan Senate Judiciary and Public Safety Committee but did not advance.