Starting Nov. 12, 2026, federal hemp rules count total THC, including THCA. By...

https://www.usaenlinea.com/the-hemp-law-changing-this-fall-and-what-it-means-for-whats-on-the-shelf/

Starting Nov. 12, 2026, federal hemp rules count total THC, including THCA. By Dec. 11, products must meet a 0.4 mg total THC per-container cap. Check labels and ask retailers how the changes affect products you buy.