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

https://charlie-wiki.win/index.php/Could_Congress_Change_the_Hemp_Rules_Again_After_December_11%3F

The December 11 US hemp rule counts total THC, including THCA, and caps it at 0.4 mg per container. That may narrow product choices and shift demand toward THC-free inputs with batch lab reports, the clearest path to compliance.