On Sep. 26, 2023, the U.S. Department of Agriculture (USDA) announced they had reviewed a hemp plant modified using genetic engineering. Growing Together Research, Inc., modified a hemp plant to reduce tetrahydrocannabinol (THC) and cannabichromene (CBC) levels.

APHIS found this modified hemp is unlikely to pose an increased plant pest risk compared to other cultivated hemp. As a result, it is not subject to regulation under 7 CFR part 340. From a plant pest risk perspective, this hemp may be safely grown and bred in the U.S.