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Missouri THC Ban (2026): 7 of 9 Banned, Full List

Partial ban

As of November 12, 2026, Missouri bans 7 of 9 tracked THC compounds at retail. Banned: Delta-8 THC, THCa, THCP, HHC (capsule / tablet), Delta-10 THC, THC-O Acetate and HHC-P. Restricted or gray: Delta-9 THC (vape / inhalable) and THCV. Pending: Delta-9 THC: HB 2641 tier 2 products keyed to federal 7 U.S.C. 1639o timing takes effect December 11, 2026 (in 28 days).

Each row below links to the determination with the controlling law verbatim.

When does the Missouri THC ban take effect?

Delta-9 THC: HB 2641 tier 2 products keyed to federal 7 U.S.C. 1639o timing takes effect in Missouri on December 11, 2026, 28 days from November 13, 2026. Most of the federal hemp redefinition takes effect December 11, 2026. A narrower piece, covering cannabinoids the plant cannot naturally produce, started November 12, 2026.

Elevatedenforcement date in 28 days (H.R. 6500 (Pub. L. 119-103) / Pub. L. 119-37 Sec. 781); effective date in 28 days (HB 2641 (2026) tier 2 / H.R. 6500); cease and desist by the attorney general (Missouri Attorney General Catherine Hanaway), guidance to the sector, not self-executing

in 28 days December 11, 2026
Delta-8 THC: Federal hemp redefinition, Dec 11 piece: total THC 0.3% and 0.4 mg total THC per container
Federal · Enforcement date · H.R. 6500 (Pub. L. 119-103) / Pub. L. 119-37 Sec. 781
Pub. L. 119-103 (continuing resolution, Sept 2, 2026) delayed the rest of the Pub. L. 119-37 sec. 781 hemp definition to Dec 11, 2026 (CRS IF13136, Sept 28, 2026): hemp is measured by total tetrahydrocannabinols including THCA (0.3% dry weight), and any final product over 0.4 mg combined total THC and cannabinoids with similar effects per container leaves hemp. A product that leaves hemp is marijuana, Schedule I, in every state.
in 28 days December 11, 2026
Delta-9 THC: HB 2641 tier 2 products keyed to federal 7 U.S.C. 1639o timing
Missouri · Effective date · HB 2641 (2026) tier 2 / H.R. 6500
active March 25, 2026
Delta-8 THC: Missouri AG sends cease-and-desist letters to 33 unlicensed 'dispensaries' and smoke shops selling intoxicating cannabinoid products outside the Article XIV framework
Missouri · Cease and desist · Attorney General (Missouri Attorney General Catherine Hanaway) · guidance to the sector, not self-executing
33 retailers in the St. Louis (18), Kansas City (13) and Springfield (2) regions were ordered to stop selling intoxicating cannabis products, stop child-appealing or confusing packaging and stop selling adulterated products, under the Missouri Merchandising Practices Act; letters cited total-THC above 0.3 percent and contaminants.
October 22, 2026
Delta-8 THC: Missouri Announces Major Changes to Marijuana Seed and Genetics Rules, Effective November 12
Missouri · Signal
October 21, 2026
Delta-9 THC: HR 4963: Marijuana 1-to-3 Act of 2025
Federal · Bill activity
Introduced in House (2025-08-12)
September 15, 2026
Delta-9 THC: Missouri hemp-THC ban leaves medical full-spectrum companies with few options
Missouri · Signal
took effect November 12, 2026
Delta-8 THC: Intoxicating Cannabinoid Control Act, RSMo 195.900
Missouri · Effective date · HB 2641 (2026)
Tier 1 (195.900.11(1)(a)) becomes marijuana-only, no contingency: synthesized or non-natural cannabinoids (HHC, converted D8, THCP, EPN class), THCA smokable flower or bud, solid edibles with hemp D9 above natural plant concentration. Manufacturing, testing, transportation and retail sale reserved to Article XIV licensees statewide; $5,000 per unit sold plus class D felony; AG has primary enforcement. No grandfathering or sell-through. Zero-THC products (0.4 mg or less total THC per container, no synthesized cannabinoids) are outside the mandate per the State’s litigation position, ambiguous on the literal text. See law text RSMo 195.900 in the state drawer. The separate federal-timing provision can apply to beverages with naturally produced cannabinoids that do not meet a tier 1 criterion; beverages containing synthesized cannabinoids can be tier 1. Under the current federal extension, products outside tier 1 are generally deferred to December 11, 2026, subject to the statute's federal-contingency condition.
took effect November 12, 2026
THC-O Acetate: Federal hemp redefinition, Nov 12 slice: THC-O acetate, which the plant cannot produce, leaves hemp
Federal · Enforcement date · H.R. 5371 (Pub. L. 119-37, Sec. 781)
Pub. L. 119-103 sec. 2019 (Sept 2, 2026): until Dec 11, 2026 the Pub. L. 119-37 sec. 781 amendments apply only to products with cannabinoids not capable of being naturally produced by a Cannabis sativa plant (7 U.S.C. 1639o(1)(C)(ii)(I) and (iv)(I)). THC-O acetate is made only by acetylating THC outside the plant, so products containing it leave the federal hemp definition on Nov 12, 2026 and fall in the Schedule I tetrahydrocannabinols listing.
took effect November 12, 2026
HHC-P: Federal hemp redefinition, Nov 12 slice: cannabinoids the plant cannot produce, including HHC-P, leave hemp
Federal · Enforcement date · H.R. 5371 (Pub. L. 119-37, Sec. 781)
Pub. L. 119-103 sec. 2019 (Sept 2, 2026): until Dec 11, 2026 the Pub. L. 119-37 sec. 781 amendments apply only to products with cannabinoids not capable of being naturally produced by a Cannabis sativa plant (7 U.S.C. 1639o(1)(C)(ii)(I) and (iv)(I)). HHC-P is not reported as produced by the plant, so on that reading products containing it leave the federal hemp definition on Nov 12, 2026. FDA's list of plant-producible cannabinoids, due Feb 10, 2026, is still unpublished.

Every tracked THC compound in Missouri

Compound	Status	Headline	Effective
Delta-8 THC	Illegal	From Nov 12, 2026: Delta-8 made outside the plant is marijuana-channel only at any amount (RSMo 195.900.11(1)(a)b)	2026-11-12
Delta-9 THC (vape / inhalable)	Banned from December 11, 2026	Date depends on source: converted delta-9 vapes Nov 12, 2026; plant-extracted Dec 11, 2026; 21+ from Nov 12 (RSMo 195.900.11)	2026-12-11
THCa	Illegal	From Nov 12, 2026: THCa flower is marijuana-channel only at any THCA amount (RSMo 195.900.11(1)(a)c); plant-extracted concentrates follow Dec 11	2026-11-12
THCP	Illegal	From Nov 12, 2026: THCP made outside the plant is marijuana-channel only at any amount (RSMo 195.900.11(1)(a)b)	2026-11-12
THCV	Restricted	From Dec 11, 2026: 0.4 mg per container cap (RSMo 195.900, HB 2641, follows the federal date)	2026-12-11
HHC (capsule / tablet)	Illegal	Federally scheduled (schedule_i eff. 2026-05-04) · state law: illegal	2026-11-12
Delta-10 THC	Illegal	Delta-10 THC: from November 12, 2026, made outside the plant, so marijuana-channel only at any amount (RSMo 195.900.11(1)(a)b)	2026-11-12
THC-O Acetate	Illegal	Federally scheduled (schedule_i eff. 2026-11-12) · state law: illegal	2026-11-12
HHC-P	Illegal	HHC-P: from November 12, 2026, a cannabinoid not produced by the plant, marijuana-channel only at any amount (RSMo 195.900.11(1)(a)a-b)	2026-11-12

Nearby

Arkansas THC ban partial ban
Illinois THC ban partial ban
Iowa THC ban banned
Kansas THC ban partial ban
Kentucky THC ban partial ban
Nebraska THC ban partial ban
Oklahoma THC ban partial ban
Tennessee THC ban partial ban

THC ban in every state · All compounds in Missouri · Federal hemp ban: what changes Nov 12 and Dec 11

Cite this page

Compound Analytics. “Missouri THC Ban (2026): 7 of 9 Banned, Full List.” Compound Laws, https://compoundlaws.com/bans/thc/missouri/. Accessed November 13, 2026.

Compound Laws, published by Compound Analytics, reports the record: statutes verbatim, official citations, enforcement facts and verification dates. Nothing here is legal advice and nothing here describes how to get around a law. A jurisdiction with no verified row is reported as not yet verified, never as legal. Found an error? Corrections policy.

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