Wisconsin Hemp Law 2026: What Changes on November 12?
Federal hemp law is scheduled to change on November 12, 2026. The new rule changes how THC is measured. It also creates a 0.4 mg total-THC limit for many final hemp-derived cannabinoid products. These changes can affect Delta-8, hemp-derived Delta-9, and some CBD products sold in Wisconsin.
The enacted federal law is still scheduled to take effect on November 12, 2026. On August 8, the U.S. Senate passed a funding measure that includes a one-month delay. The House must still approve that measure before the delay can become law. We will update this page if the effective date changes.[1][6]
The new federal law does not ban all hemp. It changes the federal definition of hemp. It uses total THC instead of only delta-9 THC for the plant-level limit. It also excludes many final cannabinoid products that contain more than 0.4 mg of combined total THC per retail container.[1][2]
What changes under the new federal hemp law?
Congress enacted the new definition in November 2025. Section 781 of Public Law 119-37 changes the federal definition of hemp 365 days after enactment. Under the enacted text, that date is November 12, 2026.[1]
| Rule | Before the new definition | Under the new definition |
|---|---|---|
| Plant THC standard | Based mainly on delta-9 THC concentration. | Uses total THC, including THCA. |
| Final cannabinoid products | No federal 0.4 mg-per-container rule. | Many products above 0.4 mg combined total THC per container are excluded from the federal definition of hemp. |
| Manufactured cannabinoids | The 2018 definition created legal uncertainty for converted cannabinoids. | Certain cannabinoids made outside the plant are expressly excluded. |
| Industrial hemp | Legal hemp includes industrial uses. | The new law continues to include industrial hemp. |
The Congressional Research Service says that products excluded from the new definition would no longer receive the federal hemp exclusion from the Controlled Substances Act. CRS also says that the future federal enforcement approach is not yet clear.[2][3]
1. The law changes the THC measurement
The 2018 federal hemp definition focused on delta-9 THC. The new definition uses total tetrahydrocannabinols. It expressly includes THCA in that measurement. The plant-level limit remains 0.3% on a dry-weight basis.[1]
This difference matters because a product or plant can contain more than one form of THC. A test that looks only at delta-9 THC does not give the same result as a test for total THC.
2. Final products face a 0.4 mg-per-container test
The new law creates a separate rule for final hemp-derived cannabinoid products. A final product is excluded from the federal definition of hemp if it contains more than 0.4 mg combined total per container of total THC and certain other THC-like cannabinoids identified by federal regulators.[1]
The 0.4 mg amount applies to the container. It does not apply only to one serving.[1]
What does “0.4 mg per container” mean?
The statute defines a container as the innermost retail package that is in direct contact with the finished product. Examples include a bottle, jar, bag, packet, box, can, carton, or cartridge.[1]
Assume a bottle contains 30 mL of product. Assume the full bottle contains 3 mg of total THC. The amount for the legal container test is 3 mg. It is not 3 mg divided by the number of servings.
This is only an example. It is not a statement about a specific Door County Cannabis Co. product.
What could the 2026 law mean for CBD?
The statute does not say that all CBD is banned. CBD and THC are different cannabinoids. The important questions are how the CBD product was made and how much total THC is in the final retail container.[1][3]
Full-spectrum CBD can contain naturally occurring trace THC. A full-spectrum product can therefore be under the current percentage limit and still contain more than 0.4 mg of total THC in the full container. If it exceeds the new container limit, it would not meet the new federal definition of hemp. This conclusion follows from the statutory container rule.[1]
This does not mean every CBD isolate or broad-spectrum product has the same legal result. The actual cannabinoid content of the final product matters.
What could the law mean for hemp-derived Delta-9 THC?
Hemp-derived Delta-9 products can be lawful under the current federal framework when they meet the existing hemp definition. The new federal definition adds the 0.4 mg-per-container limit for final cannabinoid products. Many current Delta-9 products contain more than 0.4 mg of THC in a retail container. Those products would not fit the new federal hemp definition if the enacted rule takes effect as written.[1][2]
What could the law mean for Delta-8 THC?
The new law also changes the treatment of certain cannabinoids made outside the cannabis plant. It excludes cannabinoids that cannot occur naturally in the plant. It also excludes certain naturally occurring cannabinoids when they were synthesized or manufactured outside the plant.[1]
This provision is important for Delta-8 products because commercial Delta-8 can involve conversion or manufacturing steps. The legal result depends on the product and the production method.
Is all hemp being banned?
No. The new federal definition expressly includes industrial hemp. The law describes industrial hemp uses such as fiber, grain, seed, research, and other non-cannabinoid uses.[1]
The major change is for hemp-derived cannabinoid products intended for human or animal use. This is why the phrase “hemp ban” can be misleading.
What does this mean in Wisconsin?
Wisconsin changed its hemp law in 2019 to align the state framework with federal hemp law.[5]
Wisconsin ended its state hemp grower licensing program at the end of 2021. Since January 1, 2022, USDA has licensed Wisconsin hemp growers.[4]
In March 2026, Wisconsin Gov. Tony Evers asked the Wisconsin congressional delegation to change the new federal law. His office said Wisconsin hemp businesses support nearly 3,500 jobs and more than $700 million in economic activity.[7]
The federal change matters in Wisconsin even though it is a federal law. It changes which products qualify as hemp under federal law.
Could the November 12 date still change?
Yes. Congress can amend the law before the effective date.
On August 8, 2026, the U.S. Senate passed a short-term funding measure that includes a one-month delay for the hemp change. The House has not yet completed action on that measure as of this update. The delay is therefore not yet part of enacted law.[6]
Separate bills have also been introduced to delay implementation for a longer period. For example, the Hemp Planting Predictability Act would replace the 365-day implementation period with three years. Those bills have not become law.[8]
We will update this page when Congress changes the legal status or the effective date.
What this change means for Door County Cannabis Co.
Door County Cannabis Co. began with hemp grown on a Wisconsin farm. We built our products around that crop and the customers who supported it.
The federal change now creates an uncertain path for many of the products we sell. It is also affecting our business before November.
In August 2026, Square notified us that it plans to stop supporting businesses that primarily sell CBD and hemp-derived products. Square told us that our account is scheduled to close on November 5, 2026.
We are sharing that information because it shows how the federal change can affect a small hemp business before the statutory effective date. This is our first-hand experience.
We do not know exactly what Door County Cannabis Co. will look like after this season. For now, we are focused on serving our customers, selling through current inventory, and staying informed as Congress considers changes.
A Changing Season for Hemp.
Our current products remain available while inventory lasts. If Door County Cannabis Co. has been part of your routine, this is a meaningful time to stock up and support the Wisconsin farm behind the brand.
Common questions about the Wisconsin hemp law change
Is hemp illegal in Wisconsin in 2026?
No. Hemp is not broadly illegal in Wisconsin. Current hemp products remain subject to current federal and state rules before the new federal definition takes effect. The 2026 federal change will narrow which cannabinoid products qualify as hemp.[1]
Does the new law ban CBD?
The law does not state that all CBD is banned. The 0.4 mg-per-container limit can affect CBD products that contain trace total THC. The final formulation and cannabinoid content matter.[1]
What happens to Delta-9 gummies after November 12, 2026?
A final hemp-derived product that contains more than 0.4 mg of combined total THC per container would not meet the new federal hemp definition if the enacted rule takes effect as written.[1]
What happens to Delta-8?
The law excludes certain cannabinoids that were synthesized or manufactured outside the cannabis plant. It also applies the final-product THC limit. The result depends on the product and how it was made.[1]
What does 0.4 mg per container mean?
The limit applies to the innermost retail package that directly contains the product. It is not simply a per-serving limit.[1]
Has the November 12 deadline been delayed?
Not yet as of August 12, 2026. The Senate passed a measure that would delay the change by one month. House approval is still required.[6]
Sources
- U.S. Congress. H.R. 5371 enrolled text, Section 781.
- Congressional Research Service. Change to Federal Definition of Hemp and Implications for Federal Enforcement.
- Congressional Research Service. Changes to the Statutory Definition of Hemp and Issues for Congress.
- Wisconsin Department of Agriculture, Trade and Consumer Protection. Wisconsin Hemp Resources.
- Office of the Governor of Wisconsin. Gov. Evers Signs the Growing Opportunities Act.
- Associated Press. Senate funding measure passed August 8, 2026, including a proposed one-month hemp delay.
- Office of the Governor of Wisconsin. March 2026 letter urging changes to the new federal hemp law.
- U.S. Congress. S. 3686, Hemp Planting Predictability Act.
This article is for general information only. It is not legal advice. Hemp and cannabinoid laws can change. Check current federal, state, and local rules before you make a legal or business decision.
