The NRC has issued a Final Environmental Impact Statement (FEIS) for TRISO-X, LLC's application for a 40-year special nuclear material license to construct, operate, and decommission a HALEU fuel fabrication facility on a 110-acre greenfield site at the Horizon Center in Oak Ridge, Roane County, Tennessee. The facility would produce tri-structural isotropic-based coated particles using uranium enriched to less than 20 weight percent uranium-235, making it the first-of-its-kind fabrication operation in the United States. The FEIS evaluates the proposed action and the no-action alternative, and the NRC staff recommends issuance of the license unless safety issues arise.123