National Nuclear Security Administration September 30, 2020 – Federal Register Recent Federal Regulation Documents

The National Nuclear Security Administration (NNSA), a separately organized agency within the U.S. Department of Energy (DOE), is amending its October 2019 Amended Record of Decision (AROD) for the Continued Interim Operation of the Y-12 National Security Complex (2019 AROD) to continue to implement its approach for meeting enriched uranium (EU) requirements, by upgrading existing EU processing buildings and constructing a new Uranium Processing Facility (UPF). Since publication of the 2019 AROD, NNSA finalized a Supplement Analysis for the Final Site-Wide Environmental Impact Statement for the Y-12 National Security Complex, Earthquake Accident Analysis (DOE/EIS- 0387-SA-04) (2020 SA), which presented an accident analysis of earthquake consequences at the Y-12 site using updated seismic hazard analyses. Based on the analysis in the 2020 SA, NNSA determined that no additional NEPA documentation is required. This new 2020 AROD combines elements of the two alternatives previously analyzed in the 2011 Final Site-Wide Environmental Impact Statement for the Y-12 National Security Complex (DOE/EIS-0387) (Y-12 SWEIS), and separates the single-structure UPF design concept into a new design consisting of multiple buildings, with each constructed to safety and security requirements appropriate to the building's function. All other defense mission activities and non-defense mission activities conducted at Y-12 under the alternative selected for implementation in the 2011 ROD would continue to be implemented.