The December 11 US 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 US hemp rule counts total THC, including THCA, and caps it at 0.4 mg per container. It is likely to reduce demand for products over the limit and favor compliant alternatives. THC-free inputs with batch lab reports are the clearest path.