Yes, THC gummies are legal in Wisconsin when they are hemp-derived and contain no more than 0.3% Delta-9 THC on a dry weight basis. Gummies made from marijuana remain illegal in every form, and even legal hemp gummies can still cost you a driver’s license, a job, or a clean criminal record depending on where and when you use them.
What Makes a Gummy Legal in Wisconsin
The dividing line is chemistry, not branding. Under Wis. Stat. § 94.55, hemp must contain no more than 0.3% Delta-9 THC on a dry weight basis, measured using post-decarboxylation or a similarly reliable method.1Wisconsin State Legislature. Wisconsin Code 94 – Section 94.55 Hemp A gummy made from compliant hemp is classified as an industrial hemp product rather than a controlled substance, and Wisconsin law specifically provides that food is not adulterated solely because it contains hemp.2Wisconsin State Legislature. 2017 Wisconsin Act 100 That is the legal basis for the gummies you see in CBD shops, vape stores, wellness retailers, and some gas stations.
The 0.3% cap applies to Delta-9 THC specifically, not a broader “total THC” calculation. The milligram count per gummy can be surprisingly high and still fall under the limit, because 0.3% is measured against the product’s dry weight. A gummy with 10 mg of Delta-9 THC can be fully legal if the total weight of the gummy makes that dose come in under three-tenths of one percent.
Compliance largely runs on the honor system. The Wisconsin Department of Agriculture, Trade and Consumer Protection does not currently require post-harvest product testing for retail hemp goods.3Wisconsin State Legislature. DATCP Hemp Program Guidance Reputable manufacturers publish a Certificate of Analysis for each batch, showing third-party lab results. Buying without one means trusting the label, and if a product tests over the limit, its chemistry controls the legal outcome, not your intent.
Delta-8, HHC, and Other Isomers Sit in a Gray Area
Delta-8 THC, Delta-10, HHC, THCP, and similar cannabinoids are sold openly in Wisconsin, but their legal footing is thinner than the shelves suggest. Delta-8 appears in cannabis plants only in trace amounts, so commercial Delta-8 is typically produced by chemically converting CBD. The FDA has described that process as synthetic conversion.4U.S. Food and Drug Administration. 5 Things to Know about Delta-8 Tetrahydrocannabinol – Delta-8 THC The DEA’s implementing rule under the Farm Bill states that synthetically derived tetrahydrocannabinols remain Schedule I controlled substances regardless of their Delta-9 concentration.5Federal Register. Implementation of the Agriculture Improvement Act of 2018
Whether converting one naturally sourced cannabinoid into another counts as “synthetic” has not been definitively resolved. Wisconsin’s statutes track the federal framework closely.2Wisconsin State Legislature. 2017 Wisconsin Act 100 A Delta-9 gummy that meets the 0.3% rule stands on solid legal ground. A Delta-8 or HHC gummy from the same shelf does not.
Marijuana-Derived Gummies Are Illegal
Any gummy made from cannabis that exceeds 0.3% Delta-9 THC is a controlled substance in Wisconsin. The state has no recreational program, no broad medical program, and no decriminalization law. The only cannabis-related medical provision is a narrow 2013 law allowing CBD without psychoactive effect for seizure disorders, and it does not authorize THC gummies of any kind.6Wisconsin State Legislature. 2013 Wisconsin Act 267
Penalties under Wis. Stat. § 961.41 turn on whether it is a first or subsequent possession offense, not the weight of what you had. A first-time possession conviction is a misdemeanor carrying a fine of up to $1,000, up to six months in jail, or both.7Wisconsin State Legislature. Wisconsin Statutes 961.41 – Prohibited Acts A – Penalties A second or subsequent possession offense becomes a Class I felony, carrying a fine of up to $10,000, up to three and a half years of imprisonment, or both.8Wisconsin State Legislature. Wisconsin Statutes 939.50 – Classification of Felonies
Law enforcement cannot tell by looking whether a gummy came from hemp or marijuana. A compliant hemp gummy and an illegal marijuana gummy can look and taste identical, which is why keeping a product’s Certificate of Analysis with you matters more than most buyers realize.
Driving After a Legal Gummy Can Still Be an OWI
This is the risk Wisconsin consumers most often miss. Under Wis. Stat. § 346.63, you can be charged with operating under the influence if you have any detectable amount of Delta-9 THC in your blood. There is no nanogram threshold, just any measurable presence.9Wisconsin State Legislature. Wisconsin Code 346 – Section 346.63 Operating Under Influence of Intoxicant or Other Drug The statute carves out a narrow defense for someone with a valid prescription for Delta-9 THC, but retail hemp gummies are not prescription products.10Wisconsin State Legislature. Wisconsin Statutes 346.63 – Operating Under Influence of Intoxicant or Other Drug
Edible THC behaves differently from inhaled THC. The effects last longer, and detectable THC can linger in your blood well into the next day depending on dose and metabolism. Someone who took a legal hemp gummy at dinner could still have detectable Delta-9 the next morning.
A first-offense OWI with detectable THC carries a forfeiture of $250 to $275, roughly $800 in court costs and surcharges, a six-month license revocation, and a mandatory alcohol and drug assessment.11Wisconsin Court System. OWI Sentencing Guidelines Repeat offenses move into misdemeanor and felony territory with jail time. A legal purchase does not immunize you from the OWI statute.
Drug Tests Do Not Know Where Your THC Came From
Standard workplace drug screens look for THC metabolites and cannot distinguish between THC from a legal hemp gummy and THC from marijuana. Research from Johns Hopkins Medicine found that cannabis products near the 0.3% threshold triggered positive urine drug tests in some participants at the 50 ng/mL cutoff commonly used in employment testing.12Johns Hopkins Medicine. Some CBD Products May Yield Cannabis-Positive Urine Drug Tests Regular gummy use raises the odds of accumulating enough metabolites to fail.
Wisconsin is an at-will employment state, and no current law protects employees who test positive for THC, even when the source was a legal product. A proposed bill (AB 812) addressed employer liability for choosing not to test, but it did not create protections for employees who do test positive.13Wisconsin State Legislature. Wisconsin AB812 Bill Text If your job tests, legal does not mean safe.
Buying Gummies: Where, and at What Age
No medical card, doctor’s recommendation, or state registration is needed to buy hemp-derived THC gummies in Wisconsin. They are sold through private retailers, not through a state-run program.
Wisconsin state law does not currently set a minimum age for purchasing hemp products. Most retailers voluntarily enforce a 21-and-over policy that mirrors alcohol rules, but until that becomes statutory, age enforcement depends on the shop.
Traveling With Hemp Gummies
TSA policy allows products containing no more than 0.3% THC on a dry weight basis, consistent with the 2018 Farm Bill. TSA officers do not search for drugs, but any product that raises suspicion gets referred to law enforcement.14Transportation Security Administration. Medical Marijuana – What Can I Bring A Certificate of Analysis in your bag is the fastest way to answer questions. The destination matters too: a state that bans the specific cannabinoid in your gummy will not care that your product is federally compliant.
Federal property inside Wisconsin is a separate problem. Cannabis in all forms, including edibles, is prohibited on National Forest System lands and other federally managed property regardless of state law. A first offense can bring a mandatory federal court appearance, fines starting at $1,000, and up to one year of imprisonment.15U.S. Forest Service. Cannabis Use on National Forest System Lands Do not assume a ranger will take the time to distinguish your hemp gummy from a marijuana one.
Pending Bills Could Shrink the Legal Market
Senate Bill 644, introduced in November 2025, would create a new regulatory category called “intoxicating hemp products” and impose strict limits on their sale. A companion measure, Assembly Bill 680, contains similar provisions.16Wisconsin State Legislature. Wisconsin SB644 Bill Text17Wisconsin State Legislature. 2025 Assembly Bill 680 The bills target Delta-8, Delta-9, Delta-10, HHC, THCP, THC-O-acetate, THCA, and any other cannabinoid that produces intoxication. Any edible hemp product with 1.0 milligram or more of intoxicating cannabinoids per serving or per package would qualify as a restricted intoxicating hemp product, a threshold that would cover nearly every THC gummy currently on Wisconsin shelves, since most carry 5 to 25 milligrams per piece.
The proposed rules would also:
- Set a firm age floor of 21 for purchase or possession of any intoxicating hemp product.
- Ban packaging that resembles candy or that is marketed to children.
- Require labeling with a symbol indicating the product is for adults 21 and older.
- Impose escalating penalties for selling to anyone under 21, from a $500 civil forfeiture for a first violation up to $10,000 and nine months of imprisonment for three or more violations within 30 months.
As of early 2026, SB 644 had been referred to the Senate Committee on Licensing, Regulatory Reform, State and Federal Affairs but had not advanced to a floor vote. If you rely on the current rules, keep an eye on where these bills land.