September 2, 2026
USDA Deregulates American Chestnut Genetically Engineered for Enhanced Blight Tolerance
On August 28, 2026, the U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) advised the public of its determination that Darling 54 American Chestnut (Castanea dentata), which was developed using genetic engineering for tolerance to the fungal pathogen, Cryphonectria parasitica, is no longer considered regulated. 91 Fed Reg. 55510. According to the notice, APHIS’ determination is based on its evaluation of information and data submitted...