States That Legally Regulate Medical and/or Adult Social Use of Marijuana

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As of June 25, 2019, a total of 32 states plus the District of Columbia and Guam have what are called "effective" state medical marijuana laws. These states include: Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Hawaii, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, Utah, Vermont, Washington state, and West Virginia.

As of June 25, 2019, eleven states have legalized adult (aged 21 and older) personal use of marijuana: Alaska, California, Colorado, Illinois, Maine, Massachusetts, Michigan, Nevada, Oregon, Vermont, and Washington state. In addition, ten of those eleven states - Vermont is the exception - legally regulate the production, distribution, and sale of marijuana. The District of Columbia has also legalized limited personal possession and cultivation of marijuana by adults aged 21 and older.

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Marijuana Policy Project, "State by State Medical Marijuana Laws 2015 with a December 2016 Supplement - How to Remove the Threat of Arrest," (Washington, DC: MPP, February 2017), p. 1, last accessed September 27, 2017.
https://www.mpp.org...
West Virginia: https://www.mpp.org/states/wes...
Vermont: "Governor Phil Scott Signs H.511," Office of the Governor of Vermont, News Release, Jan. 22, 2018.
http://governor.vermont.gov/pr...
"An act relating to eliminating penalties for possession of limited amounts of marijuana by adults 21 years of age or older"
https://legislature.vermont.go...
Oklahoma: Oklahoma State Question 788, Medical Marijuana Legalization Initiative (June 2018) https://ballotpedia.org/...
Michigan, Missouri, and Utah: http://www.drugpolicy.org/pres...
Illinois: HB 1438

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