Statement From NCDA&CS on THC Testing

— Written By

6/12/2020 – The statement below has been provided by the N.C. Department of Agriculture and Consumer Services to clarify how testing is currently conducted for THC, as well as how it will be conducted under USDA’s Interim Final Rule:

North Carolina is currently in the state’s fourth year of industrial hemp production. Since the inception of the NC Industrial Hemp Pilot Program, the State of North Carolina has always tested using GC-FID (Gas Chromatograph – Flame Ionization Detector). This piece of equipment outfitted with this detector heats compliance samples resulting in the conversion of delta-9 THCA (the biosynthetic precursor of delta-9 THC) into delta-9 THC resulting in a post-decarboxylation measure of delta-9 THC. This measure is often referred to as “Total THC.” This methodology is widely used and accepted as a valid scientific measure of delta-9 THC content and on November 1, 2020, will be the mandated measure for all hemp compliance testing throughout the United States as dictated by the USDA’s Interim Final Rule.

If you have any questions, please review on the Industrial Hemp website. If you still have questions, you can email those to