Compliance Testing of Hemp ( L.) Cultivars for Total Delta-9 THC and Total CBD Using Gas Chromatography with Flame Ionization Detection.

The United States Agriculture Improvement Act passed in December of 2018 legalized the growing of containing not more than 0.3% total Delta-9 tetrahydrocannabinol (THC) in the country. While has been cultivated for hundreds of years, the illegal status of the plant in the United States, and elsewhere, has hindered the development of plant cultivars that meet this legal definition.