December 11’s US hemp rule counts total THC, including THCA, and caps it at 0.4...

https://en.mercopress.com/2026/10/14/new-us-hemp-rules-take-effect-december-11-shifting-demand-for-south-american-exporters

December 11’s US hemp rule counts total THC, including THCA, and caps it at 0.4 mg per container. That narrows demand for intoxicating hemp products and shifts it toward THC-free inputs with batch lab reports, the clearest compliance path.