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

The latest in Madison

Madison's BestJuly 31

Madison’s Best: Your Guide To August 2026 in Madison

Discover the best events, festivals, and activities in Madison this August 2026. Don't miss out on the ultimate summer highlights—plan yo...

The City Cast Madison team stands in front of a pop-up tent at the 2025 Magic Pride Festival.
Food & DrinkJuly 30

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...

Two people standing at a counter at a pizza restaurant.
Madison NewsJuly 29

Listen to Our Interviews with Wisconsin’s Candidates for Governor

There are still seven candidates in the running for Wisconsin governor. Find out where they stand on the issues.

Four voting stations sit empty in front of a windows on a sunny day
Madison NewsJuly 29

Site of Corey Ruiz Shooting Becomes a Living Memorial

Protesters close Madison blocks for a Corey Ruiz memorial site, sparking debate over safety and traffic. Chief Patterson shares no new up...

A sprawling makeshift memorial for Corey Ruiz with flowers and candles.
Madison NewsJuly 27

Here’s the Latest on the Corey Ruiz Shooting

AtwoodFest and local concerts are cancelled following the Corey Ruiz shooting. Plus, Willy Street remains closed as police records are su...

A group of protestors stand outside a brick building. One holds a sign that reads "MURDER."
Madison NewsJuly 23

Photos: Madison Reacts To Deadly Police Shooting

On July 22, protesters took to the streets of Madison after the fatal shooting by police of a young Black man at the intersection of Will...

A man in a gray hooded sweatshirt speaks into a microphone in a crowd.
Madison NewsJuly 23

Officials and Community React To Police Killing

A Madison police officer killed a man on July 23 sparking community protests. Here is what local Politicans' and candidates for Wisconsin...

The focus is on an individual taking a photo of protests occurring in front of the Capitol Building. The protestors' faces are out of focus.
Madison's BestJuly 17

An AC/DC Fan’s Guide to Madison

Get all the details for the AC/DC Power Up Tour at Camp Randall Stadium in Madison! Discover how to get tickets, show times, and where to...

Brian Johnson of AC/DC stands on stage with his arms extended out the side during a concert in Sao Paulo, Brazil