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LAW- Cannabis Law in Michigan: Home

Introduction- Legalization Timeline in Michigan

2008--63% of voters approved the Michigan Compassionate Care Initiative making Michigan the 13th state to legalize medical marijuana. The law provided protections for patients and caregivers, but did not establish regulations for the dispensing of medical marijuana.

2016-- lawmakers passed three bills that overhauled the state’s medical marijuana program. Regulated medical cannabis dispensaries were allowed to operate throughout the state. The use of non-smokable marijuana products i.e. topicals and edibles were also approved, and a 4% tax on Marijuana products was created.

November 2018-- Proposal 1 passed with 55.9% of the vote, making Michigan the 10th state to legalize marijuana for adults. In Michigan, anyone over 21 years of age can possess up to 2.5 ounces of cannabis in public, and ten ounces are allowed in the home. Home cultivation of up to 12 marijuana plants is also legal.

The Marijuana Policy Project (MPP)

Definintions | Terms

Cannabis:all products derived from the plant Cannabis sativa.

Cannabidiol (CBD): a product of cannabis that has been traditionally considered non-psychoactive. CBD has become popular for its therapeutic effects in autism, epilepsy, and nerve problems.

Hemp: Any part of the cannabis plant where the THC concentration that does not exceed 0.3%.

Marijuana: The dried flowers, leaves, stems, and seeds of the cannabis plant, Cannabis sativa that contain substantial amounts of tetrahydrocannabinol (THC). 

Medical use of cannabis: The use of cannabis to manage the symptoms of some medical conditions.

Recreational use of cannabis: The intentional use of cannabis for personal enjoyment rather than for health purposes.

Tetrahydrocannabinol (THC) the main psychoactive constituent of cannabis.

Vaping: A method of cannabis use where vapor, rather than smoke, is inhaled.


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Kathryn Polgar
Arthur Neef Law Library Reference Desk
(313) 577-6180

Selected Books

Michigan: Addiction resources

Contact information to access publicly funded substance use disorder treatments

800-241-4949 (24-hours, 7-days) Detroit/Wayne Mental Health Authority

248-464-6363 (24-hours, 7-days) Oakland County Community Mental Health Authority

586-948-0222 (24-hours, 7-days) Macomb County Community Mental Health Services

800-440-7548 (24-hours, 7-days) CMH Partnership of SE MI serving: Lenawee, Livingston, Monroe, Washtenaw Counties

877-346-3648 (24-hours, 7-days) Region 10 serving: Genesee, Lapeer, Sanilac, St. Clair Counties

800-834-3393 (24-hours, 7-days) Northern MI Regional Entity serving: Alcona, Alpena, Antrim, Benzie, Charlevoix, Cheboygan, Crawford, Emmet, Grand Traverse, Iosco, Kalkaska, Leelanau, Manistee, Missaukee, Montmorency, Ogemaw, Oscoda, Otsego, Presque Isle, Roscommon, Wexford Counties

800-305-6564 (24-hours, 7-days) Northcare Network serving: Alger, Baraga, Chippewa, Delta, Dickinson, Gogebic, Houghton, Iron, Keweenaw, Luce, Mackinac, Marquette, Menominee, Ontonagon, Schoolcraft Counties

800-897-3301 (24-hours, 7-days) Lakeshore regional serving: Allegan, Kent, Lake, Mason, Muskegon, Oceana, Ottawa Counties

844-405-3095 (24-hours, 7-days) Mid- State Health serving: Arenac, Bay, Clare, Clinton, Eaton, Gladwin, Gratiot, Hillsdale, Huron, Ingham, Ionia, Isabella, Jackson, Mecosta, Midland, Montcalm, Newaygo, Osceola, Saginaw, Shiawassee, Tuscola Counties

800-781-0353 (24-hours, 7-days) Southwest Michigan Behavioral Health serving: Barry, Berrien, Branch, Calhoun, Cass, Kalamazoo, St. Joseph, Van Buren Counties