The Dec. 11 US hemp rule counts total THC, including THCA, and caps THC at 0.4...

https://dallassinterestingwords.cloudhinter.com/posts/if-i-sell-cbd-tinctures-how-do-i-stay-under-the-0.4-mg-thc-cap

The Dec. 11 US hemp rule counts total THC, including THCA, and caps THC at 0.4 mg per container. It may reduce demand for intoxicating hemp goods. THC-free inputs with batch lab reports are the clearest path to compliance.