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California THC Ban (2026): All 9 Tracked Compounds Banned

Banned

As of November 12, 2026, California bans every tracked THC compound at retail. Banned: Delta-8 THC, Delta-9 THC (vape / inhalable), THCa, THCP, THCV, HHC (capsule / tablet), Delta-10 THC, THC-O Acetate and HHC-P.

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

Latest update September 23, 2026: Delta-9 THC in California: Status changed from illegal to restricted. Change history

When does the California THC ban take effect?

No THC ban effective date is pending in California as of 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.

Watchenforcement date in 28 days (H.R. 6500 (Pub. L. 119-103) / Pub. L. 119-37 Sec. 781); recent bill or agency activity

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.
October 29, 2026
Delta-9 THC: Pending bill: Prohibited hemp-derived cannabis products (Bus. & Prof. Code Sec. 26070.2) and CDPH industrial hemp serving/age/purity rules
California · 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)
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 California

Compound	Status	Headline	Effective
Delta-8 THC	Illegal	Delta-8 illegal - scheduled / named ban	2024-09-23
Delta-9 THC (vape / inhalable)	Illegal	Hemp Delta-9 vape - illegal	2026-01-01
THCa	Illegal	THCa flower illegal - scheduled / named ban	2024-09-23
THCP	Illegal	THCP illegal - scheduled / named ban	2024-09-23
THCV	Illegal	Inhalable hemp products prohibited: H&S 111921.6(a)	2021-10-06
HHC (capsule / tablet)	Illegal	Federally scheduled (schedule_i eff. 2026-05-04) · state law: illegal	2026-01-01
Delta-10 THC	Illegal	Delta-10 THC illegal: products with synthetic cannabinoids banned, including THC converted from CBD (Bus. & Prof. Code 26070.2(d))	2026-01-01
THC-O Acetate	Illegal	Federally scheduled (schedule_i eff. 2026-11-12) · state law: illegal	2026-01-01
HHC-P	Illegal	HHC-P illegal: products containing synthetic cannabinoids are banned (Bus. & Prof. Code 26070.2(d), AB 8)	2026-01-01

Recent changes in California

2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from illegal to restricted.
2026-09-23HHC (Hexahydrocannabinol): Status changed from illegal to restricted.
2026-09-23Delta-9 THC (hemp-derived): Status changed from restricted to illegal.

Nearby

Arizona THC ban partial ban
Nevada THC ban partial ban
Oregon THC ban partial ban
Hawaii THC ban banned

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

Cite this page

Compound Analytics. “California THC Ban (2026): All 9 Tracked Compounds Banned.” Compound Laws, https://compoundlaws.com/bans/thc/california/. 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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