The December 11 US hemp rule counts total THC, including THCA, and sets a 0.4...

https://www.apu-bookmarks.win/the-december-11-u-s-hemp-rule-change-narrows-which-products-qualify-by

The December 11 US hemp rule counts total THC, including THCA, and sets a 0.4 mg per container cap. It may reduce demand for intoxicating hemp products and push buyers toward compliant alternatives