The Dec. 11 U.S. hemp rule counts total THC, including THCA, and caps...

https://zandersexcellentdigests.yousher.com/what-does-thc-free-actually-mean-for-cbd-isolate-suppliers

The Dec. 11 U.S. hemp rule counts total THC, including THCA, and caps hemp-derived products at 0.4 mg per container. That narrows demand for intoxicating products and favors THC-free inputs backed by batch lab reports as the clearest compliance path.