THCV (Tetrahydrocannabivarin): is it legal in your state?

Delta-9 tetrahydrocannabivarin, a naturally occurring varin homolog of delta-9 THC (propyl side chain). Federally unscheduled inside the hemp definition today; counted toward the 0.4 mg per container total-THC cap from Dec 11, 2026 as a cannabinoid with similar effects, and converted THCV is excluded at any amount from Nov 12, 2026. State exposure runs through inhalable-hemp bans, THC definitions that name THCV (OH, TN), per-package caps (MD) and flavor or additive rules for vapes. Seeded Oct 7, 2026 from the Botanical Terpene Vape state brief; vape form only.

Framework: Hemp cannabinoid · Reference article

Federal posture

Not federally scheduled. THCV (vape) - not federally scheduled inside the hemp definition today; a cartridge over 0.4 mg THCV leaves hemp on Dec 11, 2026 Federal detail and instruments

Pending deadlines

• 2026-11-12 · IL · Illinois Hemp Act: 0.4 mg per container cap, total THC, smokable and vape hemp banned (SB 3222 (P.A. 104-463))
  Nov 12, 2026: the Industrial Hemp Act is repealed and replaced. Hemp is measured by total THC including THCA (0.3% dry weight); a final hemp-derived product over 0.4 mg combined THC and similar cannabinoids per container is not hemp and is treated as cannabis; final consumer products cannot be intended for smoking or vaping; cannabinoids made outside the plant are excluded; lab testing, child-resistant packaging and a manufacturer license apply. 21+ has applied since June 12, 2026. This Illinois date does not move with the federal Dec 11 delay.
• 2026-12-11 · MO · HB 2641 tier 2 products keyed to federal 7 U.S.C. 1639o timing (HB 2641 (2026) tier 2 / H.R. 6500)
• 2026-12-11 · Federal · Federal hemp redefinition, Dec 11 piece: total THC 0.3% and 0.4 mg total THC per container (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.

Status by state

Related compounds (Hemp cannabinoid)

• Delta-8 THC
• Delta-9 THC (hemp-derived)
• THCa
• CBN (Cannabinol)
• HHC (Hexahydrocannabinol)
• CBD (Cannabidiol, hemp-derived)
• CBG / CBDA / CBGA (hemp-derived)
• THCP
• EPN / Euphorinol

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