The December 11 US hemp rule change narrows which products qualify as...

https://www.nav-bookmarks.win/the-december-11-u-s-hemp-change-counts-total-thc-including-thca-and-sets-a

The December 11 US hemp rule change narrows which products qualify as hemp-derived. It counts total THC, including THCA, and caps THC at 0.4 mg per container