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

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 it at 0.4 mg per container. That may reduce demand for intoxicating hemp products and shift buyers toward compliant options