Crossing the Red River with Medical Cannabis: ND and MN Rules

If you live in East Grand Forks and work in Grand Forks, or the other way around, you cross a state line every day without thinking about it. With medical cannabis, that bridge matters. Here's general information on how North Dakota, Minnesota and federal law fit together as of September 26, 2026. It isn't legal advice.

Two States, Two Sets of Rules

North Dakota has a medical program only. Under North Dakota Century Code chapter 19-24.1, a patient needs a valid registry card from ND HHS to buy, use or possess medical marijuana under the program, and dispensaries can sell only to registered patients and caregivers.

Minnesota has a medical program run by the Office of Cannabis Management, and it also allows adults 21 and older to possess limited amounts of cannabis under Minnesota Statutes section 342.09. Each state's law covers what happens inside that state. Neither one reaches across the river.

Why Your Card Doesn't Simply Carry Over

A medical cannabis card is permission under one state's law. It isn't a national license. Both states do have their own ways to handle patients from elsewhere:

• In North Dakota: a nonresident with a valid card from their home state may apply to ND HHS for a North Dakota card, sending their home-state ID and card in place of a new certification. The card is short term, and the state must approve it before you buy.
• In Minnesota: a "visiting patient," meaning someone who isn't a Minnesota resident and has a valid card from another state, may buy from a business with a medical cannabis retail endorsement after showing that card and photo ID, under Minnesota Statutes section 342.51.

The details of both paths can change, so check with ND HHS or the Minnesota Office of Cannabis Management before you rely on either one.

What Federal Law Says Now

For decades, federal law placed all marijuana in Schedule I. That changed in part in 2026. A final rule published in the Federal Register, effective April 28, 2026, moved marijuana in FDA-approved products and marijuana subject to a state medical marijuana license to Schedule III. Other marijuana, including adult-use cannabis, stayed in Schedule I. A separate federal hearing on broader rescheduling began in June 2026, and we did not find a final decision on it when we wrote this.

Schedule III drugs are still controlled substances. The rule deals with how marijuana is classified and how licensed businesses register with the Drug Enforcement Administration. It doesn't say that patients may carry cannabis across state lines, and it doesn't make one state's card valid in another state. Federal rules on firearms, federal property and federal jobs may still apply to you.

Carrying Cannabis Across the River

The simplest rule is to buy and use within the state that authorizes you, and to leave products at home when you cross. That can mean changing small habits, like what you keep in your car or work bag.

Think through the places you go each week. If a bag or vehicle goes back and forth across the river, keep it free of cannabis products and packaging. If you travel farther, every state line brings its own rules, so check the law where you are going before each trip.

Driving and Work

Neither state protects impaired driving. North Dakota's law gives no protection for driving a vehicle while under the influence of marijuana, and Minnesota's law says people may not use cannabis in a motor vehicle. The CDC notes that cannabis can slow reaction time and affect coordination and judgment, and that the safest choice is not to use it if you plan to drive. Arrange a ride, a rideshare or a taxi instead.

Work rules are separate from state card rules. North Dakota's law doesn't stop an employer from disciplining an employee for having cannabis at work, working under the influence or working with marijuana in their system. Check your employer's written policy, and ask HR, the state or a lawyer about your specific job.

Next Steps

For the Minnesota side, see our Minnesota medical cannabis page and how medical and adult-use cannabis differ in Minnesota. For more on jobs and the road, read medical cannabis, driving, work and drug tests.