Two hemp bans are bearing down on Missouri at once. The state’s own law takes effect November 12, 2026, and the federal redefinition of hemp follows on December 11. Both are being fought, one in a federal courtroom in Jefferson City and the other on the floor of Congress. This article lays out what each law actually says, where the challenges stand as of September 10, 2026, and what the landscape looks like if one or both of them fall.
Key dates as of September 10, 2026
November 12, 2026: Missouri’s HB 2641 takes effect for the product categories it lists by name (synthetic and non-naturally-occurring cannabinoids, smokable and vapeable THCA products, and solid edibles with elevated delta-9 THC). The same day, the federal restriction on cannabinoids that cannot be produced naturally by the cannabis plant takes effect.
December 11, 2026: The rest of the federal hemp redefinition takes effect under the one-month delay Congress enacted in H.R. 6500, signed September 2, 2026. Under HB 2641’s contingency clause, Missouri’s remaining hemp-derived products, notably beverages, follow the federal timeline.
Both dates could move again. A federal court is weighing a motion to dismiss the challenge to Missouri’s law, and Congress must pass another funding measure by December 11.
For several years, Missouri gas stations, smoke shops, bars, and grocery stores have sold gummies, vapes, flower, and seltzers that produce a marijuana-like effect but were marketed as “hemp” under the definition Congress adopted in the 2018 Farm Bill. That definition measured only delta-9 THC, and only in the raw plant. Products built on delta-8 THC, THCA, or a small dose of delta-9 in a large container could clear the 0.3 percent threshold on paper while producing a substantial effect in practice. Federal and Missouri lawmakers have now both moved to close that gap, and they did so in ways that overlap but do not perfectly match.
The federal ban: Section 781 of Public Law 119-37
The federal change arrived inside the appropriations package that ended the fall 2025 government shutdown. Section 781 of Public Law 119-37, signed November 12, 2025, rewrote the definition of hemp in 7 U.S.C. § 1639o. According to the Congressional Research Service, the amended definition makes four changes that matter for consumer products.
Total THC, not just delta-9. The 0.3 percent dry-weight limit now counts total tetrahydrocannabinols, expressly including THCA, the acid form that converts to delta-9 THC when heated. Most “THCA flower” fails this test.
A 0.4 milligram per-container cap on finished products. Any final product with more than 0.4 milligrams of total THC (plus other cannabinoids with similar effects that the FDA is directed to identify) in the entire container is not hemp. A single typical 5 or 10 milligram gummy exceeds this many times over.
No synthesized or non-natural cannabinoids. Cannabinoids the plant cannot make on its own, and cannabinoids synthesized outside the plant, are excluded. Most delta-8, HHC, and THC-O products fall here.
Industrial hemp is protected. Hemp grown for fiber, grain, seed, and similar non-cannabinoid uses keeps its legal status.
The consequence of falling outside the hemp definition is not simply a labeling problem. As CRS explains, a cannabis product that is not hemp is marijuana under the Controlled Substances Act, a Schedule I substance, with the criminal exposure for manufacturing and distribution that comes with that status. CRS also notes the practical limits on enforcement: the Department of Justice has never had the resources to prosecute every violation and has historically not prioritized small-scale cannabis cases. That observation is not a safe harbor, and business owners should not treat it as one.
Congress originally gave the industry one year, to November 12, 2026. In August, the Senate attached a one-month extension to the continuing resolution that funds the government through December 11, 2026. The Senate passed H.R. 6500 on August 8 by a vote of 90 to 6 after tabling, 61 to 32, an amendment from Senator Ted Budd that would have stripped the hemp delay. The House concurred on September 1, 370 to 48, and the White House announced the President’s signature on September 2. The delay applies only to naturally occurring cannabinoids; the exclusion of synthetic and non-natural cannabinoids still takes effect on November 12, according to analyses by Akerman LLP and Hemp Law Group, a firm that represents hemp businesses.
Missouri’s ban: HB 2641 and the Intoxicating Cannabinoid Control Act
Governor Mike Kehoe signed House Bill 2641 on April 23, 2026, after the House approved the Senate’s version 126 to 23 and the Senate passed it 25 to 5, according to St. Louis Public Radio (NPR member station, publicly funded). The bill, sponsored by Representative Dave Hinman of O’Fallon, creates a new section 195.900 of the Revised Statutes of Missouri, titled the Intoxicating Cannabinoid Control Act, and amends the definitions in section 195.010. The Truly Agreed and Finally Passed text is available from the Missouri House.
Missouri’s approach is different in structure from the federal one. Rather than simply declaring the products illegal, HB 2641 provides that hemp-derived cannabinoid products “shall be construed to conform to, and be included in, the definition of ‘marijuana’” under Article XIV of the Missouri Constitution, and that cultivating, manufacturing, testing, transporting, and selling them may be “conducted solely by entities licensed by the department under Article XIV.” In other words, the products are routed into the state’s licensed marijuana system. The definition of hemp in the new section tracks the federal thresholds, including the 0.4 milligram per-container limit and the exclusion of synthesized cannabinoids.
0.4 mg
Total THC per container above which a finished product is no longer “hemp” under both the federal and Missouri definitions.
Nov. 12
Missouri effective date for the product categories HB 2641 names, and the federal date for synthetic cannabinoids.
Dec. 11
Delayed federal effective date for naturally occurring cannabinoid products, which Missouri’s remaining products follow.
$5,000
Fine per transaction under section 195.900, in addition to class D felony liability, with the Attorney General holding primary enforcement jurisdiction.
Why “regulate through dispensaries” functions as a ban
Article XIV requires that marijuana sold in Missouri dispensaries be grown and manufactured by Missouri-licensed facilities, and the Department of Health and Senior Services has issued the maximum number of licenses the constitution allows. Most intoxicating hemp sold in Missouri is grown and manufactured out of state. The result, as St. Louis Public Radio and the Missouri Independent (nonprofit, part of the States Newsroom network) both reported, is that there is effectively no license an existing hemp retailer can apply for. Trade publication MJBizDaily (cannabis-industry press) estimates the Missouri hemp THC market at roughly $1 billion, and St. Louis Public Radio reported that roughly 40,000 restaurants, bars, and smoke shops in the state sold these products in 2024.
Supporters frame the law as a child-safety and consumer-protection measure. Governor Kehoe said both chambers “worked hard to put something that eliminated the access for our children to these drugs, off of the shelves,” and Attorney General Catherine Hanaway said that “a storefront and a sales counter do not make an illegal drug operation into a legitimate business,” according to the Missouri Independent. The Missouri Hemp Trade Association responded that the law “effectively dismantles an industry built by real Missourians who have operated in good faith.”
The two-tier effective date
The most consequential and least understood part of HB 2641 is its effective-date subsection. The bill sets a firm November 12, 2026 date for specifically enumerated categories: products containing cannabinoids the cannabis plant cannot naturally produce, cannabinoids synthesized outside the plant, smokable or vapeable products containing THCA, and solid edibles such as gummies whose delta-9 THC exceeds naturally occurring concentrations. For everything else, the statute provides that if “Congress delays the effective date of federal hemp restrictions under 7 U.S.C. Section 1639o on or before November 12, 2026, this section shall apply to such products only during any period in which such federal restrictions prohibit such products,” with a requirement that in the meantime those products not be sold to anyone under 21.
Because Congress did delay the federal date before November 12, that clause is now live. The practical reading, reported by the Missouri Independent and MJBizDaily on September 9, is that hemp THC beverages and other products outside the enumerated categories may stay on Missouri shelves, age-gated to 21 and older, until December 11, while the enumerated categories come off the shelves November 12 regardless of what Congress does. Representative Hinman told MJBizDaily that if Congress changes course on beverages, the legislature would “have to look at in January, putting a framework around specifically the drinks.”
The challenge to Missouri’s law
On July 16, 2026, the Missouri Hemp Trade Association, Wisconsin beverage maker Lifted Liquids Inc., and MNG 2005 Inc., the parent company of the CBD Kratom retail chain, sued Governor Kehoe, Attorney General Hanaway, and DHSS Director Sarah Wilson in the U.S. District Court for the Western District of Missouri. The case is MoHemp Trade Association et al. v. Kehoe et al., No. 2:26-cv-04170, and it has been assigned to Judge M. Douglas Harpool, according to the Missouri Independent. Coverage in Nutritional Outlook (supplement-industry trade press) describes three counts.
Void for vagueness (due process). The plaintiffs argue that HB 2641 defines the same product as lawful “hemp” in one place and unlawful “marijuana” in another, so that a business cannot tell what conduct is criminal, and that the layered effective dates compound the confusion.
Dormant Commerce Clause. By confining lawful sales to Missouri-grown, Missouri-manufactured product sold through Missouri-licensed dispensaries, the law is alleged to discriminate against out-of-state producers and interstate commerce.
Express preemption under the 2018 Farm Bill. The Farm Bill bars states from prohibiting the transportation or shipment of hemp through their territory. The plaintiffs contend HB 2641 does exactly that for shipments that neither begin nor end in Missouri.
The state has moved to dismiss. In its filing, reported by the Missouri Independent and Marijuana Moment (cannabis-policy news outlet, generally sympathetic to legalization), Missouri argues that there is no ambiguity because the statute creates an explicit hierarchy in which hemp-derived cannabinoid products are marijuana, that the General Assembly “enacted provisions to guard against confusion,” and that “it is that simple.” The plaintiffs’ response, filed in late August, maintains that the overlapping definitions leave “a single product” that “is simultaneously legal ‘hemp’ and illegal ‘marijuana.’”
“Most judges would read [House Bill 2641] and go, ‘What is going on here?’”
Chuck Hatfield, counsel for the plaintiffs, as quoted by the Missouri Independent
As of September 10, the court has not ruled on the motion to dismiss and no preliminary injunction has been entered. With the November 12 date roughly nine weeks away, a ruling on whether the law can take effect on schedule is the single most important near-term event for Missouri hemp businesses.
Missouri is not alone. Hemp businesses have filed similar suits against state restrictions in Texas, where the Texas Tribune (nonprofit newsroom) reports that a federal court denied an emergency motion on August 10 and a preliminary-injunction ruling is pending, and in Virginia. Those cases raise the same preemption and commerce-clause theories and will influence how Judge Harpool’s ruling is viewed even though they are not binding on him.
The challenge to the federal law is legislative, not judicial
Our review found no lawsuit filed against Section 781 itself, and industry trackers such as Next Level Leaf (hemp-industry publication) report the same. That is not surprising. Congress’s power to define and schedule controlled substances under the Commerce Clause has been settled since Gonzales v. Raich (2005), which upheld federal prohibition of even purely intrastate, state-legal medical marijuana. A constitutional attack on Congress narrowing a definition it created in 2018 faces long odds, and the hemp industry has instead concentrated on changing the statute before it bites.
Several bills are pending. Representative Nancy Mace’s H.R. 6209 would repeal Section 781 outright. The Hemp Planting Predictability Act (H.R. 7024 and a Senate companion) would push the effective date to November 2028. Representatives Andy Barr and Angie Craig’s H.R. 9830 and Representatives Beth Van Duyne and Greg Landsman’s H.R. 10079 would replace the ban with age limits, testing, and, for beverages, an alcohol-style regulatory model. In the Senate, Senator Rand Paul, joined by Senators Amy Klobuchar and Joni Ernst, introduced the Hemp Safety Enforcement Act in April, and Senators Ron Wyden and Jeff Merkley have their own regulatory bill. None has received a committee vote. The House-passed 2026 Farm Bill left Section 781 in place, and the Senate Agriculture Committee’s draft contains no hemp provisions at all; that committee failed to advance its bill on August 6 and, per Farm Policy News (University of Illinois), plans another vote this month.
The other side is organized as well. On August 4, a coalition of 35 state attorneys general, led by Indiana, Arkansas, Connecticut, and New Mexico and reported by Cannabis Business Times (cannabis-industry trade press) to include Missouri, sent a letter to Congress urging it to keep the November 12 date and warning that reopening the 2018 loophole would “create confusion, invite litigation and undermine the progress” states have made. House Freedom Caucus chairman Andy Harris opposed the one-month delay, according to Bloomberg Government, and Senator Budd’s effort to strip it drew 32 votes. The December 11 date is also the date government funding runs out, which means the next fight over hemp will again be folded into a must-pass spending bill.
Four scenarios: what happens if either ban, or both, fail
The two laws are linked by HB 2641’s contingency clause but they are not the same law, and each can survive or fall independently. The analysis below is our reading of the statutory text and the public record; it is not a prediction of what a court or Congress will do.
Scenario 1: Both bans take effect as scheduled
This is the current default. On November 12, the enumerated categories become marijuana under Missouri law and synthetic cannabinoids lose federal hemp status. On December 11, everything over 0.4 milligrams per container becomes marijuana under both federal and Missouri law. In Missouri, a product in that position may be sold only by a DHSS-licensed facility that grew and manufactured it in state. Federally, it is Schedule I, and the long-standing appropriations rider that restrains Justice Department enforcement against state-legal cannabis covers only medical programs. Retailers who continue selling face the $5,000-per-transaction fine and class D felony exposure in section 195.900 as well as consumer-protection enforcement by the Attorney General.
Scenario 2: The federal ban is delayed again or repealed; Missouri’s law stands
Missouri’s enumerated categories are banned on November 12 no matter what Congress does; the contingency clause does not reach them. For the remaining products, including beverages, the statute says section 195.900 applies “only during any period in which such federal restrictions prohibit such products.” A further federal delay would therefore keep those products lawful in Missouri, subject to the 21-and-older rule, for as long as the delay lasts. A repeal is less clear. The clause is written in terms of a delay, not a repeal, and press summaries have described a repeal as sending those products into dispensaries only. That uncertainty is one of the vagueness arguments in the pending lawsuit, and Representative Hinman has already signaled that the legislature would revisit the question in January 2027.
Scenario 3: Missouri’s law is enjoined; the federal ban takes effect
If Judge Harpool enjoins HB 2641, Missouri’s prior definitions of hemp and industrial hemp return and state-level criminal exposure recedes. The federal definition still changes on December 11, and a gummy or seltzer over 0.4 milligrams becomes marijuana under the Controlled Substances Act. State law would no longer prohibit the sale, but the product would be federally illegal, which is the same posture Missouri’s licensed marijuana industry has operated in since 2018. The difference is that hemp retailers lack the state license that gives dispensaries a measure of political and practical cover. Expect the consequences to show up first with banks, payment processors, insurers, and landlords, whose contracts commonly prohibit federally unlawful activity, rather than with federal prosecutors. An injunction would also very likely be appealed to the Eighth Circuit.
Scenario 4: Both fail
If Congress repeals or indefinitely delays Section 781 and a court blocks HB 2641, the market returns to the 2018 Farm Bill status quo: intoxicating hemp products are lawful to sell, and Missouri has no state framework governing age limits, testing, labeling, or potency for them, because HB 2641 was the framework. That outcome is the one both the 35 attorneys general and the bill’s Missouri sponsors have described as unacceptable, and it is the scenario most likely to bring the General Assembly back to the subject in the 2027 session with a regulatory bill rather than a ban. Even in this scenario, any temporary injunction could be lifted on appeal, so a business that reopens on the strength of a trial-court ruling should plan for the possibility that the ruling does not last.
What this means for Missouri business owners and consumers
For a retailer, distributor, or manufacturer, the dates that matter are November 12 for the enumerated categories and December 11 for everything else, and neither date should be treated as negotiable until a court or Congress moves it. Inventory purchased on credit, supply contracts with out-of-state producers, commercial leases with use clauses, and employment obligations all need to be reviewed against a calendar that may leave nine weeks to wind down a product line. Contracts often contain change-in-law or illegality provisions that determine who bears the loss on stranded inventory, and those provisions read very differently depending on whether the product is banned by the state, the federal government, or both. Businesses with a Missouri marijuana license face a different question, which is whether and how to bring hemp-derived formulations into their licensed operations under DHSS rules.
For consumers, the picture is less severe than the headlines suggest. Article XIV of the Missouri Constitution allows adults 21 and older to possess up to three ounces of marijuana, and HB 2641 classifies hemp-derived cannabinoid products as marijuana. An adult holding a package of hemp gummies after the effective date is, on the face of the statute, in the same position as an adult holding dispensary product, though the products themselves will no longer be available outside dispensaries. The one clear change for consumers is the 21-and-older rule for the products that remain on shelves between November 12 and December 11. Employers who test for THC should note that none of this changes their drug-testing rights under Missouri law.
Helpful resources
The news coverage below is drawn from several vantage points and labeled by ownership, so you can weigh each account and reach your own conclusion. No wire-service or international coverage of these specific developments was available at the time of writing; where possible we have relied on primary documents.
Primary sources
HB 2641, Truly Agreed and Finally Passed text (Missouri House of Representatives) and the official bill summary
H.R. 6500, Continuing Appropriations and Extensions Act, 2027 (Congress.gov) and the White House signing statement
CRS Legal Sidebar LSB11381, Changes to the Federal Definition of Hemp and CRS In Focus IF13136 (Congressional Research Service, nonpartisan)
Letter of 35 state attorneys general to Congress, August 4, 2026 (advocacy document from state officials supporting the ban)
Missouri Revised Statutes, Chapter 195 (Justia) and Gonzales v. Raich, 545 U.S. 1 (2005)
News and analysis
Lawsuit seeks to block Missouri ban, Missouri says its ban is clear, and drinks get one month of relief (Missouri Independent, nonprofit newsroom in the States Newsroom network)
Missouri legislature passes bill that greatly restricts intoxicating hemp industry (St. Louis Public Radio, NPR member station)
Hemp ban delay passed by Congress after blowback from hardliners (Bloomberg Government, subscription policy news)
Texas hemp industry sues state over ban (Texas Tribune, nonprofit newsroom)
Missouri hemp businesses sue to block HB 2641 (Nutritional Outlook, supplement-industry trade press)
Missouri moves intoxicating hemp into regulated market Nov. 12 (MJBizDaily) and 35 attorneys general tell Congress to keep hemp THC ban (Cannabis Business Times); both are cannabis-industry trade publications
Missouri officials defend hemp product ban (Marijuana Moment, cannabis-policy outlet generally favorable to legalization)
Congress approves one-month delay of federal hemp THC restrictions (Akerman LLP) and Federal hemp ban 2026: where things stand (Hemp Law Group, a firm representing hemp clients); law-firm client alerts
Senator Paul introduces the Hemp Safety Enforcement Act (official Senate press release, advocacy for the bill)
Related on this site: Missouri’s Intoxicating Hemp Ban Takes Effect November 12: What HB 2641 Means for Retailers and Consumers · Business Law · Criminal Law · Drug Offenses
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This article is provided for general educational purposes only and does not constitute legal or tax advice. Reading it does not create an attorney-client relationship with Haake Law Group or Derek R. Haake. Federal and Missouri cannabis and hemp laws are changing rapidly, carry criminal and civil penalties, and are the subject of pending litigation and legislation that may alter the dates and rules described above. Information is current as of September 10, 2026. Verify the current status of any law with the relevant agency, the Missouri General Assembly, or Congress.gov, and consult a licensed attorney about your specific situation before making decisions.