The December 11 U.S. hemp rule counts total THC, including THCA, and caps it at...

https://www.apu-bookmarks.win/the-december-11-u-s-hemp-rule-change-narrows-which-products-qualify-by

The December 11 U.S. hemp rule counts total THC, including THCA, and caps it at 0.4 mg per container. That narrows demand for intoxicating hemp products and favors THC-free inputs with batch lab reports as the clearest compliance path.