City Cast Madison logo

Madison’s Weed Rules, Explained

Posted on October 16, 2023   |   Updated on September 30, 2025
Hayley Sperling

Hayley Sperling

Cannabis leaves on marijuana plant. This cannabis background features marijuana leaves on pink background.

The city, state, and federal government all have varying rules when it comes to marijuana. (Getty images)

Many high-profile Madisonians have long fought for the full legalization of marijuana, but when it comes to passing legislation in the statehouse, little progress has been made. But that hasn’t stopped countless marijuana-related businesses from sprouting up across the isthmus in the last decade.

When it comes to understanding marijuana in Madison, it can be hard to see through the haze of terminology, changing legal practices, and historic stigmas attached to the plant.

Marijuana’s Legal Standings

Let’s clear some items up quickly with a look at the rules.

Federally, marijuana is classified as a Schedule One substance, which the law defines as having no accepted medical use and a high potential for abuse (though there has been a recent effort to lower this classification to Schedule Three).

At the state level, marijuana is also classified as a Schedule I hallucinogenic substance under the Wisconsin Uniform Controlled Substances Act.

In Madison, possession of marijuana is still illegal, but police will not pursue charges unless given a reason. Madisonians who are over the age of 18 are allowed to possess no more than 28 grams of marijuana. Additionally, there are rules for when and where you can light up, for example, you can’t smoke anywhere that all smoking is prohibited (like bars and restaurants) or in a moving vehicle.

CBD, Delta-8, and Beyond

In 2017, then-Gov. Scott Walker signed legislation paving the way for hemp farming in Wisconsin, a practice that was halted with the Marihuana Tax Act of 1938. Once farmers were able to start growing hemp, this opened the door to CBD cultivation and distribution.

Cannabidiol, commonly referred to as CBD, is an active ingredient in cannabis derived from the hemp plant. CBD itself is not psychoactive but the plants grown for CBD also contain psychoactive molecules as Alan Robinson, cannabis activist and co-founder of Herbal Aspects explained recently on City Cast Madison

CBD can be synthesized into delta-8 and delta-9 THC (and beyond!), thus opening a door to legal marijuana products. It’s important to note, however, that in order to remain legal, the delta-9 THC content of the product must be less than 0.3%.

Delta-8 THC is about 60% less psychoactive than delta-9, according to Robinson. But chemically the two are very similar, which makes it a great option for older users who might not want to experience an intense high but are still looking for that euphoric feeling. Robinson compares delta-8 to the 1970s style of marijuana, which offered a much milder experience.

What To Look For When Shopping

Though delta-8 and delta-9 are not synthetic themselves, they are synthesized. This means that the CBD must go through a chemical process in order to create the compounds and some retailers take more care in establishing the authenticity of their products than others.

When shopping for CBD, delta-8, and delta-9 products, Robinson recommends always asking for the shop’s certificate of authenticity, or COA. This document can tell shoppers if their products have been tested for specific cannabinoids, pesticides, and more.

A reputable establishment should have no trouble producing this document, the corner gas station selling vapes and gummies might be a different story.

Share article

Hey Madison

Sign up for your free daily toolkit to get the most of the city you love.

Can't subscribe? Turn off your ad blocker and try again.

Madison, Explained

See All
Madison, ExplainedSeptember 15

The House on the Rock Is Even Weirder Than You Think

Located about an hour west of Madison, The House on the Rock is one of Wisconsin's most infamous, and certainly oddest, tourist attractio...

People in a narrow room covered in glass.
Madison, ExplainedSeptember 15

How To Guard Against Ticks in Wisconsin This Fall

Tick season isn't over yet. Learn what to expect from fall tick activity in Dane County and get expert tips on how to protect yourself an...

A close-up photo of a small eight-legged insect on a human arm.
Madison, ExplainedAugust 31

How Voit Farm Will Transform Madison’s East Side

For 160 years, the 65-acre Voit Farm was a Madison fixture. Explore the ambitious new redevelopment plan bringing hundreds of homes, gree...

Two large blue buildings under construction.
Madison, ExplainedAugust 24

Test Your Madison News Knowledge!

This week's news quiz dives into everything from a new downtown restaurant to a big shake-up at UW-Madison. Can you get every question ri...

Francesca Hong and David Crowley stand on stages.
Madison, ExplainedAugust 20

Uncovering the Ghosts of Madison’s Wonder Bar

Discover the history of Madison's Wonder Bar Steakhouse as neighbors fight to save the Prohibition-era mobster hangout from a developer's...

A two-story brick building with boarded up windows and ivy growing up the side was the location of Wonder Bar Steakhouse. It now sits abandoned.
Madison, ExplainedAugust 18

Fitchburg Took Down Flock Cameras, But Will Test Others

Fitchburg ends its Flock Safety license plate reader contract over privacy concerns, testing alternatives from Axon and Motorola despite...

A city street on a winter's day with a Flock camera attached to a pole.
Madison, ExplainedAugust 10

Meet the Madison Democrats Running For Assembly District 76

Find information about the candidates running for Wisconsin's Assembly District 76 seat in the upcoming primary election.

Five political candidates sit on a stage with microphones in front of them.
Madison, ExplainedAugust 10

Your Guide to the August Primary Election in Wisconsin

Get ready for the Wisconsin election on August 11. Learn where to vote in Madison, what ID to bring, how to vote early, and mail-in ballo...

A white sign with a United States flag image and the words “VOTE HERE VOTE AQUI” stands upright in front of a Madison municipal building.

The latest in Madison

Madison NewsSeptember 14

How the Historic Meta Settlement Will Impact Wisconsin

Get the details on Wisconsin’s $200M share of the historic $17B Meta settlement as Attorney General Josh Kaul joins City Cast Madison to...

Wisconsin Attorney General Josh Kaul stands at a podium
Food & DrinkSeptember 10

How the Essen Haus Has Avoided the Wrecking Ball...So Far

Celebrate Oktoberfest 2026 at Madison's iconic Essen Haus on Saturday, Sept. 12! Enjoy a full day of live indoor/outdoor music, German be...

The front of The Essen Haus - a grey building with gold trim. The restaurant sign is pink.
Madison NewsSeptember 9

How the U.S.-Canada Trade War Could Hurt Wisconsin Farmers

Canada has retaliated with $20 billion in tariffs against the U.S. following a breakdown in trade talks. Here is how these new trade barr...

a brown cow looks out through a holding pen.
Madison's BestSeptember 8

Ann Garvin Has a Surprise in Store For Her Readers

Madison author Ann Garvin shares her glee in throwing readers a curveball with her poignant, messy new novel, hitting stores September 8.

Author Ann Garvin poses in front of a red wall.
Food & DrinkSeptember 3

Where To Eat Halal in Madison

Madison’s first-ever Halal Restaurant Week runs Sept. 4-13. Discover local restaurants offering special menu options prepared in accordan...

A plate of meat and vegetables.
Madison's BestSeptember 1

What To Do in Madison in September 2026

Discover the best things to do in Madison, Wisconsin, in September 2026! From vibrant fall festivals to concerts and athletic events, pla...

A post for the theater show "Steady as She Goes" by Erica Berman. An illustration of a woman with blue flowing hair that looks like ocean waves.
Food & DrinkAugust 27

The Best New Restaurants in Madison

This month’s list of the area’s best new restaurants includes a new outpost for a wildly popular local pizza chain, a new sushi spot near...

A blue bowl filled with a scallop tiradito.
Madison NewsAugust 19

UW Floats Tuition Freeze in Exchange For State Aid

The Universities of Wisconsin propose a 2027–29 tuition freeze and inflation-capped increases, conditional on a $190 million state fundin...

A UW Madison campus building - red brick with white columns.