The Nov. 12, 2026, law changes the federal hemp definition starting Dec. 11. It...

https://www.start-bookmarks.win/a-2026-hemp-definition-change-brings-two-dates-to-watch-nov-12-and-dec-11-the

The Nov. 12, 2026, law changes the federal hemp definition starting Dec. 11. It counts total THC, including THCA, and caps THC at 0.4 mg per container. That could change which products shoppers find in stores.