• Home
  • News
  • Fortune 500
  • Tech
  • Finance
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Politics

Legal Marijuana Sales May Spark Interstate Tension in the Midwest

By
Kathleen Foody
Kathleen Foody
,
David Eggert
David Eggert
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Kathleen Foody
Kathleen Foody
,
David Eggert
David Eggert
and
The Associated Press
The Associated Press
Down Arrow Button Icon
December 30, 2019, 9:30 AM ET

Retailers legally selling marijuana for the past month in Michigan say they have drawn customers from surrounding Midwestern states where the drug remains illegal and, as Illinois prepares to joins the recreational market on Wednesday, officials are renewing warnings to consumers against carrying such products over state lines.

The dynamic is familiar for states on the West and East coasts where the sale and use of marijuana has been broadly allowed since Colorado’s market opened in 2014, despite a federal ban that created a patchwork of legal and cultural snares. Nebraska and Oklahoma went so far as to file an unsuccessful lawsuit against Colorado, arguing that its marijuana law would have ill effects for surrounding states.

In the years since, the industry has wrestled with questions over companies’ obligation to pay federal income taxes or follow laws on employee safety. Other thorny issues confronted state regulators, who were forced to determine suitable pesticides for growing cannabis plants, and which ingredients were safe to include in products meant to be eaten or burned. That terrain is usually reserved for federal agencies.

The tensest point, though, remains the illegal market that has survived in states with legal cannabis markets. Some of that product comes from outside the legal systems tracked closely by states’ regulators, while other states have struggled to keep “diverted” legal marijuana from bleeding into the illegal market at home or in far-flung states.

Data also suggests that some customers will cross state lines in search of state-licensed marijuana retailers, despite warnings that it’s illegal to bring the product back home.

The start of legal sales in Michigan on Dec. 1 and in Illinois on Jan. 1 brings that same climate to the Midwest, where some neighboring states allow limited marijuana use for medical purposes. But none other has moved to permit recreational use.

States often differ in the regulation of contentious issues, including guns, speed limits and the drinking age. But Sam Kamin, a professor of marijuana law and policy at the University of Denver, said interstate accusations about the effect of marijuana sales on legal states’ neighbors are likely to linger unless federal law changes.

“Supply and demand tells us it’s going to be a constant thing,” Kamin said. “Regulations can only do so much and once product leaves a state, it ceases to be a regulatory problem and becomes a criminal one.”

Illinois is the 11th state to broadly allow marijuana’s use and sale, shrinking early states’ market advantage and ability to draw tourists. Industry analysts expect “canna-tourism” will remain popular in some places, such as Las Vegas, but that most companies trying to survive in an expensive, challenging industry must build a local customer base.

“Nonresident demand is not going to be the primary driver of revenue in these Midwestern states,” said John Kagia, chief knowledge officer at the industry analytics firm New Frontier Data. “Local consumers will be that primary driver.”

Kagia said available data on nonresident buyers suggests the percentage of traveling shoppers varies dramatically between states. One Colorado study found that about 9% of total cannabis product demand came from visitors to the state, while New Frontier Data estimates that the share of purchases by visitors in Nevada is about 25%.

In Michigan, where $4.7 million of recreational marijuana was sold in the first three weeks of December, regulators do not know how much was bought by out-of-state customers. But shops say business has been brisk, particularly from neighboring Ohio and Indiana and nearby Illinois.

“There’s been people from all over,” said Bart Kupczyk, co-owner and director of retail at Ann Arbor-based Greenstone Provisions, one of 23 Michigan retailers licensed for adult-use recreational sales. “Ann Arbor is close to Ohio. It’s a destination city in its own right as a fairly well-known college town.”

Some 45 miles (70 kilometers) to the south in Morenci, a town of 2,100 people along the Ohio border, a dispensary has reported that a majority of its customers hail from Ohio, where only medical marijuana is legal. Another retailer in Morenci secured its state license last week.

“It is important for residents of Ohio and non-residents traveling through the state to understand possession of marijuana remains a criminal violation in Ohio, even if it is purchased legally in another state which permits recreational use,” said Staff Lt. Craig Cvetan, public affairs commander for the Ohio State Highway Patrol.

Illinois marijuana companies said they have trained employees to remind non-residents that their products cannot legally be transported across state lines and can only be consumed in private residences or hotels that permit it. Cities can decide to allow marijuana consumption at tobacco shops or dispensaries, but none will have rules in place by January, said Pamela Althoff, executive director of the Cannabis Business Association of Illinois.

“If you want to enter into Illinois and participate in consuming cannabis, you need to be responsible and you need to know the law,” she said. “Just like alcohol, this should not be something you plan to consume and then get back in the car.”

Nonresidents can purchase less marijuana than Illinois residents under the state’s new law, and law enforcement in surrounding states have announced plans to strictly enforce their standing restriction on marijuana. Michigan’s single-transaction limit is the same for residents and nonresidents.

At Green Thumb Industries’ five “Rise” dispensaries licensed to sell recreational products in Illinois, employees have been trained to remind nonresidents customers that they can’t bring marijuana products home and to warn them not to drive after consuming, said Dina Rollman, the company’s senior vice president of government and regulatory affairs.

“We’re most focused on serving the people of Illinois, but we recognize that we’re surrounded by states that have not legalized cannabis for recreational use,” Rollman said. “Our focus is just on education for those consumers, so that we can be compliant.”

More must-read stories from Fortune:

—How the UN’s climate efforts could change the business world
—Why thousands of foreign nationals receive military training on U.S. bases each year
—What is election hacking—and can it change who wins?
—Remember Hawaii’s false missile alert? This bill aims to prevent it from happening again
—2020 Crystal Ball: Predictions for the economy, politics, technology, and more
Get up to speed on your morning commute with Fortune’s CEO Daily newsletter.

About the Authors
By Kathleen Foody
See full bioRight Arrow Button Icon
By David Eggert
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Politics

Letitia James
LawDepartment of Justice
Piling on Trump DOJ’s legitimacy issues, Letitia James challenges appointment of U.S. attorney suing her
By Michael Hill and The Associated PressDecember 4, 2025
8 hours ago
Scalise
PoliticsCongress
Congress flatlines in attempt to regulate college sports with bill ‘not ready for prime time’
By Joey Cappelletti and The Associated PressDecember 4, 2025
8 hours ago
Trump
PoliticsWhite House
‘We fixed inflation, and we fixed almost everything’: Trump travels to Pennsylvania to talk affordability while denying it’s a problem
By Josh Boak and The Associated PressDecember 4, 2025
8 hours ago
Brown
Politicsdiscrimination
Trump administration shows a pattern of firing Black leaders across government, former Transportation officials claim
By Josh Funk and The Associated PressDecember 4, 2025
9 hours ago
Erika Kirk
PoliticsMedia
Bari Weiss to moderate prime-time ‘town hall’ with Erika Kirk on CBS News
By The Associated PressDecember 4, 2025
9 hours ago
Zohran Mamdani, in front of a brick building, smiles as he holds a press conference.
Real EstateHousing
‘There is no Mamdani effect’: Manhattan luxury home sales surge after mayoral election, undercutting predictions of doom and escape to Florida
By Sasha RogelbergDecember 4, 2025
10 hours ago

Most Popular

placeholder alt text
Economy
Two months into the new fiscal year and the U.S. government is already spending more than $10 billion a week servicing national debt
By Eleanor PringleDecember 4, 2025
18 hours ago
placeholder alt text
Success
‘Godfather of AI’ says Bill Gates and Elon Musk are right about the future of work—but he predicts mass unemployment is on its way
By Preston ForeDecember 4, 2025
13 hours ago
placeholder alt text
North America
Jeff Bezos and Lauren Sánchez Bezos commit $102.5 million to organizations combating homelessness across the U.S.: ‘This is just the beginning’
By Sydney LakeDecember 2, 2025
3 days ago
placeholder alt text
Success
Nearly 4 million new manufacturing jobs are coming to America as boomers retire—but it's the one trade job Gen Z doesn't want
By Emma BurleighDecember 4, 2025
14 hours ago
placeholder alt text
Success
Nvidia CEO Jensen Huang admits he works 7 days a week, including holidays, in a constant 'state of anxiety' out of fear of going bankrupt
By Jessica CoacciDecember 4, 2025
13 hours ago
placeholder alt text
Health
Bill Gates decries ‘significant reversal in child deaths’ as nearly 5 million kids will die before they turn 5 this year
By Nick LichtenbergDecember 4, 2025
1 day ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.