Starting Nov. 12, 2026, federal hemp rules count total THC, including THCA, and...

https://dlf-ne.org/how-big-is-the-intoxicating-hemp-market-really/

Starting Nov. 12, 2026, federal hemp rules count total THC, including THCA, and cap it at 0.4 mg per container. Dec. 11, 2026, is another key date in the change. Check product labels and ask retailers how items meet the new limits.