The December 11 US hemp change 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 US hemp change counts total THC, including THCA, and caps it at 0.4 mg per container. That narrows the compliant product pool and shifts demand toward THC-free inputs with batch lab reports, the clearest path to compliance.