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Is THCa Banned in Washington? No, Legal (2026)

No ban: Legal

As of November 12, 2026, there is no THCa ban in Washington; THCa is legal to sell at retail (delta-9-only basis - THCa flower passes definition), and no pending ban or effective date is on file. Federally, Federal hemp redefinition, Dec 11 piece: total THC 0.3% and 0.4 mg total THC per container is scheduled for December 11, 2026.

Verified November 12, 2026. Full determination, citations and verbatim law: Is THCa legal in Washington?

When does the Washington THCa ban take effect?

No THCa ban is pending in Washington as of November 13, 2026.

Watchenforcement date in 28 days (H.R. 6500 (Pub. L. 119-103) / Pub. L. 119-37 Sec. 781)

in 28 days December 11, 2026
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.

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Washington THCV ban no ban, gray area

Every state where THCa is banned · Hemp ban in Washington · THC ban in Washington · Federal hemp ban: what changes Nov 12 and Dec 11 · All compounds in Washington · Is THCa Legal? Every state

Cite this page

Compound Analytics. “Is THCa Banned in Washington? No, Legal (2026).” Compound Laws, https://compoundlaws.com/bans/thca/washington/. 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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