The December 11 U.S. hemp rule change tightens which products qualify as hemp...
https://www.active-bookmarks.win/the-december-11-us-hemp-rule-counts-total-thc-including-thca-and-caps-it-at
The December 11 U.S. hemp rule change tightens which products qualify as hemp by counting total THC, including THCA, and capping THC at 0.4 mg per container