NNSA issued an Amended Record of Decision for Enhanced Plutonium Facility Utilization at Lawrence Livermore National Laboratory (DOE/EIS-0547-S1) and the Site-Wide Environmental Impact Statement for Continued Operation of Lawrence Livermore National Laboratory (DOE/EIS-0547).
Office of NEPA Policy and Compliance
May 21, 2026
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Amended Record of Decision for Enhanced Plutonium Facility Utilization; Alameda County, California
The National Nuclear Security Administration (NNSA), a semi-autonomous agency within the U.S. Department of Energy (DOE), issued an Amended Record of Decision based on the Supplemental Environmental Impact Statement (SEIS) for Enhanced Plutonium Facility Utilization at Lawrence Livermore National Laboratory (LLNL) in Livermore, California (DOE/EIS-0547-S1), tiered from the 2023 LLNL Site-Wide Environmental Impact Statement (DOE/EIS-0547). This SEIS evaluated the environmental effects of increasing the amount of fissile materials for research and development (R&D) operations at the Plutonium Facility and increasing the facility Security Category (CAT) from Security CAT III operations to Security CAT II.
For more information, see Supplemental EIS for Enhanced Plutonium Facility Utilization and Site-Wide EIS for Continued Operation of the LLNL.