Federal Hemp Redefinition and Total THC Standard

A federal provision signed into law is set to redefine hemp by implementing a 'total THC' measurement standard. This shift moves away from the previous delta-9-only measurement established by the 2018 Farm Bill, effectively capturing cannabinoids like THCA that convert to intoxicating THC when heated.

The change is scheduled to take effect in late 2026, with various sources noting dates in November and December. This reclassification is expected to remove many high-THCA flower and vape products from the legal hemp definition, potentially subjecting them to stricter controlled substance regulations.

This federal action creates a significant shift for the hemp industry, as products previously considered legal under the 2018 Farm Bill may no longer qualify for the hemp exemption. The FDA retains its authority to regulate these hemp-derived products alongside the new statutory definitions.

Industry participants are advised that this federal change does not apply to products sold through state-licensed cannabis markets, which remain governed by individual state marijuana laws. However, the broader hemp market faces a major regulatory transition as the total THC standard becomes the federal benchmark.