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

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 caps THC at 0.4 mg per container. That narrows eligible products and may shift demand to compliant inputs. THC-free ingredients with batch lab reports are the clearest path.