The December 11 U.S. hemp rule counts total THC, including THCA, and sets a cap...
https://en.mercopress.com/2026/10/14/new-us-hemp-rules-take-effect-december-11-shifting-demand-for-south-american-exporters
The December 11 U.S. hemp rule counts total THC, including THCA, and sets a cap of 0.4 mg of total THC per container