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What is THCA and how does it relate to hemp production in Colorado?
The federal and Colorado definition of Hemp is the plant species Cannabis sativa L. and any part of the plant, whether growing or not, containing a total delta-9 tetrahydrocannabinol (THC) concentration of no more than three-tenths of one percent (0.3%) on a dry weight basis. CDA requires laboratory testing on pre-harvest hemp samples to determine total ∆9-THC, which includes ∆9-THCA.
∆9-THCA is found naturally in cannabis plants. It is the acid form of the intoxicating compound ∆9-THC. Total ∆9-THC is calculated by adding the ∆9-THC to the decarboxylated ∆9-THCA in a cannabis plant. (Refer to Analytical Testing of Colorado Hemp Samples on our website for more information.)
In Colorado, cannabis plants exceeding the Acceptable HempTHC level – above 0.3% MU (Margin of Uncertainty) on a dryweight basis – are not hemp and must be disposed of and must not be admitted into the stream of commerce.
CDA recommends that hemp registrants accurately and carefully review the COAs for any seed or plants they intend to grow prior to cultivation. Such review is a good first step to identify any seeds or plants that have the potential to produce plants that have the potential for high THCA in their flower and to avoid cultivating hemp that exceeds the Acceptable THC Hemp Level. Please reach out to hemp@state.co.us with any questions.
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