Minnesota Marijuana Legalization: Limits, Home Grows & Federal Law

Minnesota’s marijuana laws let adults 21 and older possess, use, grow, and gift limited amounts of cannabis, but every one of those rights comes with a specific ceiling, a specific location rule, and a penalty tier that kicks in the moment you step past the line. Recreational use became legal on August 1, 2023, and licensed adult-use retail sales opened in September 2025 through the Office of Cannabis Management.

How Much You Can Legally Have

The possession limits are set per person, not per household, and they change depending on whether you’re at home or out in public:

Cannabis flower: up to two ounces in a public place, or up to two pounds inside your private residence
Cannabis concentrate: up to eight grams
Edibles: products containing a combined total of 800 milligrams or less of THC

Two adults living together each get their own allowance.¹

You can give cannabis to another adult who is 21 or older as long as no money changes hands, and the gifting caps mirror the personal possession caps. Gifting to anyone under 21 is illegal, and businesses cannot hand out cannabis as samples or promotions.¹

Where You Can and Cannot Use It

Legal consumption is limited to three places: your own home and yard, private property not open to the public where the owner allows it, and licensed on-site consumption venues once those become available.¹

The list of places where you cannot use cannabis is longer and easier to run into by accident:

Any motor vehicle, whether parked or moving
Anywhere the Minnesota Clean Indoor Air Act bans smoking, including restaurants, bars, and workplaces
Public schools, charter schools, and school buses (both use and possession)
State prisons and jails
Anywhere the smoke or vapor could reach a child
Apartment buildings, condos, and similar multifamily housing, including patios and balconies
Your employer’s premises, vehicles, machinery, or equipment
Federal property, including courthouses, airports, national parks, and military bases

The multifamily housing rule catches renters off guard. You can keep cannabis at home, but you can’t smoke or vape it indoors, on a balcony, or on a patio. Edibles are the practical workaround for apartment residents.²

Cannabis and Driving

Using cannabis in a motor vehicle is illegal, and the statute doesn’t distinguish between a parked car and a moving one. Transporting cannabis within the legal possession limits is fine; the prohibition is on use.¹p>

Driving under the influence of cannabis carries the same penalties as an alcohol DWI. Minnesota does not set a specific THC blood level the way it sets 0.08 for alcohol, so officers rely on observed impairment, field sobriety testing, and drug recognition evaluations. A first offense is a misdemeanor. Later offenses escalate to license revocation, plate impoundment, and vehicle forfeiture.

Growing at Home

Each residence can have up to eight cannabis plants, and no more than four can be mature and flowering at any time. This is a per-residence cap, so two adults in the same home cannot combine allowances for sixteen plants.¹

The setup rules are simple but strict:

Plants must be grown at your primary residence, or in an accessory structure on the same property
The growing area must be enclosed and locked
Plants cannot be visible to the public
You must be 21 or older

A locked closet, locked room, opaque greenhouse, or locked shed all qualify. A plant visible through a window or growing in an open backyard does not, and losing that “enclosed, locked space that is not open to public view” status means losing the legal protection and risking plant seizure.³

What Happens If You Go Over the Limit

Minnesota built four tiers of cannabis possession offenses, and the penalties climb sharply between them:

Fourth degree, a petty misdemeanor: 2 to 4 ounces of flower in public, 8 to 16 grams of concentrate, or edibles with 800 to 1,600 milligrams of THC.
Third degree, a misdemeanor: 4 ounces to 1 pound of flower outside your home, 16 to 80 grams of concentrate, or edibles with 1,600 milligrams to 8 grams of THC. Up to 90 days in jail and a $1,000 fine.
Second degree, a gross misdemeanor: 1 to 2 pounds of flower outside your home, 80 to 160 grams of concentrate, or edibles with 8 to 16 grams of THC. Up to 364 days in jail and a $3,000 fine.
First degree, a felony: 2 pounds to 10 kilograms of flower, 160 grams to 2 kilograms of concentrate, or edibles with 16 to 200 grams of THC. Up to 5 years in prison and a $10,000 fine.

The pinch point is the difference between home and public. Two pounds is legal in your residence; a hair over two ounces in your pocket is already a petty misdemeanor.⁴

Buying at Licensed Retailers

The Office of Cannabis Management oversees all commercial cannabis activity, and licensed adult-use retail sales launched in September 2025, initially through a limited number of locations operating under combination licenses.⁵

Every retailer must verify buyers are 21 or older. Purchases carry a 10% gross receipts tax on top of standard state and local sales taxes, which the retailer may show as a separate line item or roll into pricing.⁶

Clearing Old Cannabis Convictions

If you have a petty misdemeanor or misdemeanor cannabis conviction for conduct that would now be legal, expungement is automatic. The Bureau of Criminal Apprehension identifies the record and seals it, notifies the courts, and the process runs without a petition or a hearing.⁷ A dedicated state database supports the process.⁸

Felony cannabis convictions run through the Cannabis Expungement Board instead. The board began reviewing cases in December 2024 and evaluates each one individually, weighing factors like whether the original offense involved violence or weapons. Once expunged, records are sealed from background checks used for employment and housing.⁹

Where Federal Law Still Bites

Marijuana’s federal status is in flux. The DEA has moved FDA-approved marijuana products and state-regulated medical cannabis into Schedule III, with broader rescheduling hearings scheduled to begin in late June 2026. Until that process concludes, recreational marijuana remains federally restricted, and that creates concrete problems in three areas.¹⁰

Federal Property

Possessing cannabis on federal land is a federal offense regardless of Minnesota law. That includes national parks like Voyageurs, federal courthouses, post offices, military installations, and VA facilities. A first offense can mean up to six months in jail and a $5,000 fine.

Federally Subsidized Housing

Living in public housing or using a Section 8 voucher puts your housing at risk if you use cannabis. HUD policy requires property owners to deny admission to anyone currently using a federally controlled substance and allows eviction of current tenants for cannabis use, and Minnesota’s legalization does not override that. The Office of Cannabis Management specifically warns residents of federally subsidized housing about this.²

Safety-Sensitive Jobs

Commercial truck drivers, airline employees, pipeline workers, and other workers in federally regulated safety-sensitive roles face mandatory drug testing under Department of Transportation rules. A DOT-regulated employer cannot accept a state medical marijuana card as a valid explanation for a positive THC test. If you hold a CDL or any DOT-covered role, cannabis use can end your career regardless of Minnesota law.

Outside DOT-regulated work, Minnesota law prohibits cannabis use on employer premises and while operating employer equipment. Whether your employer can test for off-duty use or act on a positive result depends on your specific job and any company policy or collective bargaining agreement, and the interaction between state and federal law in this zone remains unsettled.

1
Minnesota Office of the Revisor of Statutes. Minnesota Code 342.09 – Personal Adult Use of Cannabis
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Office of Cannabis Management. Adult-Use Cannabis
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Minnesota Office of the Revisor of Statutes. Minnesota Statutes 342 – Cannabis
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Minnesota Office of the Revisor of Statutes. Minnesota Code 152.0263 – Cannabis Possession Crimes
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Office of Cannabis Management. Welcome
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Minnesota Office of the Revisor of Statutes. Minnesota Code 295.81 – Cannabis Gross Receipts Tax
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Minnesota Office of the Revisor of Statutes. Minnesota Code 609A.055 – Automatic Expungement of Certain Cannabis Offenses
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Minnesota Office of the Revisor of Statutes. Minnesota Code 299C.097 – Database for Identifying Individuals Eligible for Expungement
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State of Minnesota. MN Cannabis Expungement
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U.S. Department of Justice. Justice Department Places FDA-Approved Marijuana Products and Products Containing Marijuana in Schedule III