FEDERAL LAW CHANGE
The November 12, 2026 Federal Hemp Deadline
Federal law is narrowing the definition of hemp to a total-THC standard. Under that standard, essentially all high-THCA flower stops qualifying as hemp — regardless of what any state does.
24 days
Until the narrowed definition takes effect on November 12, 2026.
⚠️ Informational only, not legal advice. Implementation guidance and litigation may still change how this is enforced.
What the law actually says
Section 781 of P.L. 119-37 — part of the Continuing Appropriations, Agriculture, Legislative Branch, Military Construction and Veterans Affairs, and Extensions Act, 2026 (H.R. 5371) — was signed on November 12, 2025 and takes effect one year later. It changes the definition of hemp in two ways that matter to anything sold as THCA:
- Total THC replaces delta-9-only. Compliance is measured as Δ9-THC + (0.877 × THCA), capped at 0.3% on a dry-weight basis. The 0.877 multiplier accounts for the mass lost when THCA decarboxylates into Δ9-THC.
- A per-container milligram cap. Finished consumable hemp products may contain no more than 0.4mg of total THC per container.
The 2018 Farm Bill measured only Δ9-THC. That is the gap the THCA market was built in: raw flower can hold 25% THCA and still test under 0.3% Δ9-THC, because the THCA has not been heated yet. The new definition counts the THCA up front, so the gap closes.
What it means for buyers
Run the math on a typical listing. Flower at 24% THCA and 0.2% Δ9-THC computes to (0.877 × 24) + 0.2 ≈ 21.3% total THC — roughly seventy times the threshold. There is no realistic way to grow high-potency THCA flower that clears a total-THC cap; the compliance path that made this market possible simply closes.
Hemp products that were never built on the delta-9 gap are less affected. CBD and CBG products, and low-dose items that already fit inside a milligram cap, have a path forward. Inhalable high-THCA flower, concentrates and vapes do not.
State law does not rescue a product from this. A federal floor applies everywhere; states can only be stricter. Several already are — check your state.
What is still unsettled
The statute sets the definition, but the implementing detail is not all resolved: testing methodology, how the per-container cap applies to multi-serving packages, enforcement priorities across FDA, USDA and DEA, and what happens to inventory already in the channel. There is active industry lobbying for amendment or delay, and litigation is plausible. None of that has changed the effective date.
TerpSeek indexes prices; we are not your lawyer. Treat this page as a starting point and verify against the primary sources below.