Starting Nov 12, 2026, the federal hemp definition shifts to total THC,...

https://penzu.com/p/b07bc15f601123b6

Starting Nov 12, 2026, the federal hemp definition shifts to total THC, including THCA. By Dec 11, 2026, products must also meet a 0.4 mg THC-per-container cap—a change shoppers should check when comparing labels and COAs.