Is marijuana legal in Michigan?
Yes. As of 2026, marijuana (weed) is legal in Michigan for adults 21 and older, who can buy it at licensed stores and grow up to 12 plants at home. Medical marihuana is also legal.
Status checked November 4, 2026
Contents
Marijuana laws in Michigan
Michigan voters legalized adult-use marihuana by passing Proposal 1 on November 6, 2018. The Michigan Regulation and Taxation of Marihuana Act took effect December 6, 2018. Medical marihuana has been legal since voters approved the Michigan Medical Marihuana Act in 2008.
Adults 21 and older may possess, use, buy, transport or process 2.5 ounces or less of marihuana, with no more than 15 grams in the form of concentrate. In a residence, they may possess and store up to 10 ounces plus any marihuana produced by plants grown there, and cultivate up to 12 plants, with no more than 12 plants on the premises at once. They may give away up to 2.5 ounces, including no more than 15 grams of concentrate, if the transfer is not advertised.
Licensed retailers regulated by the Cannabis Regulatory Agency sell to adults 21 and older. There is no residency requirement in the personal-use statute.
The act does not authorize driving while impaired, public consumption where it is prohibited, or forcing employers to allow marihuana at work. Marijuana remains illegal under federal law, apart from state-licensed medical marijuana, which moved to Schedule III in April 2026.
What the law says
Legal
- possessing, using or consuming, internally possessing, purchasing, transporting, or processing 2.5 ounces or less of marihuana, except that not more than 15 grams of marihuana may be in the form of marihuana concentrate
- within the person's residence, possessing, storing, and processing not more than 10 ounces of marihuana and any marihuana produced by marihuana plants cultivated on the premises and cultivating not more than 12 marihuana plants for personal use, provided that no more than 12 marihuana plants are possessed, cultivated, or processed on the premises at once
Not legal
- giving away or otherwise transferring without remuneration up to 2.5 ounces of marihuana, except that not more than 15 grams of marihuana may be in the form of marihuana concentrate, to a person 21 years of age or older, as long as the transfer is not advertised or promoted to the public
Quoted from Michigan Compiled Laws §333.27955.
How old do you have to be to use marijuana in Michigan?
You have to be 21 to buy weed in Michigan for adult use. The Michigan Regulation and Taxation of Marihuana Act makes possession, purchase and home cultivation lawful only for people 21 and older. Medical marihuana is separately available to qualifying patients who register under the 2008 medical law, including some patients under 21 with a caregiver. Licensed adult-use stores sell only to adults 21 and older who show a valid ID.
How much marijuana can you have in Michigan?
Adults 21 and older in Michigan can have up to 2.5 ounces of marihuana, and no more than 15 grams of that can be concentrate. That limit applies when you carry marihuana, including in a car. At home, you can store up to 10 ounces plus any marihuana produced by plants cultivated on the premises. You can also give up to 2.5 ounces, with the same 15-gram concentrate cap, to another adult if you are not paid and you do not advertise the transfer.
Where can you buy marijuana in Michigan?
You can buy weed in Michigan at licensed marihuana retailers regulated by the Cannabis Regulatory Agency. Adults 21 and older need a valid ID. Medical patients can buy at medical provisioning centers. Some cities limit or ban storefronts, so what is nearby depends on where you are. Buying from an unlicensed seller is not legal.
Can you grow marijuana at home in Michigan?
Yes. Adults 21 and older in Michigan can grow up to 12 marihuana plants for personal use, and no more than 12 plants may be possessed, cultivated or processed on the premises at once. Homegrown marihuana can be stored at the residence along with up to 10 ounces. The plants are for personal use. Selling homegrown marihuana is not allowed.
Where can you use marijuana in Michigan?
You can smoke weed in Michigan on private property. The adult-use act makes possessing and consuming marihuana lawful for adults 21 and older, but it does not authorize public consumption where other laws ban it, use at schools, or smoking in someone else's building against the owner's rules. Consumption lounges exist only where separately licensed. Using marihuana while driving is not protected.
How do you get a medical marijuana card in Michigan?
To get a medical marijuana card in Michigan, you apply for a registry identification card under the Michigan Medical Marihuana Act after a physician certifies a debilitating medical condition. Qualifying patients and caregivers can possess and obtain medical marihuana under that act and buy at licensed medical businesses. Patients under 18 need a caregiver. The medical program remains in place alongside adult use.
Can visitors buy or use marijuana in Michigan?
Yes. Out-of-state visitors can buy marijuana in Michigan if they are 21 or older. Section 333.27955 has no residency requirement for adult-use possession or purchase. Visitors follow the same 2.5-ounce limit, 15-gram concentrate cap and home-grow rules as residents. Taking marihuana out of Michigan across state lines remains illegal under federal law.
What are the rules on driving and marijuana in Michigan?
No, you can't drive high in Michigan. The adult-use act does not protect driving, operating or being in control of a vehicle while under the influence of marihuana. Michigan's impaired-driving laws still apply to residents and visitors, including medical patients. Possessing a legal amount in the car is not a defense to driving while impaired.
Can an employer in Michigan fire you for using marijuana?
Yes, you can get fired for using marijuana in Michigan. The adult-use act does not require employers to allow marihuana at work or change an employer's right to maintain a drug-free workplace. Employers may still prohibit possession, use and impairment on the job and may test employees where other law allows it.
What are the penalties for breaking marijuana laws in Michigan?
In Michigan, adults 21 and older who stay within the 2.5-ounce limit, the 15-gram concentrate cap and the 12-plant home-grow rules are not committing a state offense for those acts. Possessing more than the legal limits, selling without a license, or advertising a giveaway can bring criminal charges under state drug and marihuana laws. Transferring marihuana to someone under 21 is not protected.
Are CBD, hemp and delta-8 products legal in Michigan?
CBD from lawful hemp can be sold in Michigan when it meets the state's hemp definition. Delta-8, THCA flower and other intoxicating hemp products that do not meet that definition are treated as marihuana and must follow the licensed marihuana rules rather than a hemp loophole. Licensed retailers sell tested adult-use products, including concentrates. Separately, a stricter federal hemp definition, with a total-THC standard that counts THCA and a 0.4 mg-per-container cap, takes effect December 11, 2026.
Does federal law still apply in Michigan?
Yes. Federal law still applies in Michigan. Marijuana remains a Schedule I controlled substance under federal law, with one exception: since April 28, 2026, marijuana covered by a state medical marijuana license and FDA-approved marijuana products are in Schedule III. A broader federal rescheduling proceeding was stayed on September 29, 2026, and has no decision date. State law does not change federal rules on federal land, on carrying marijuana across state lines, or on federally required drug testing, such as for DOT-regulated jobs.
Has the law in Michigan changed recently, or is it about to?
Michigan's adult-use rules in section 333.27955, including the 2.5-ounce possession limit and 12-plant home grow, have been in effect since December 6, 2018, and remain the core personal-use rules in 2026. Licensed sales have been operating for several years. New federal hemp limits take effect November 12 and December 11, 2026.
Legislation
Sources (6)
General information, not legal advice. Laws change often, so check with the state's cannabis agency before relying on this.
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