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Supplement Analyses (SA)

A document that DOE prepares in accordance with DOE NEPA regulations (10 CFR 1021.314(c)) to determine whether a supplemental or new EIS should be prepared pursuant to CEQ NEPA regulations (40 CFR 1502.9(c).

If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance.

Documents Available for Download

  • December 23, 2016

    Waste Isolation Pilot Plant Site-Wide Operations, Carlsbad, New Mexico

  • May 11, 2016

    Proposal to Implement Facility Modifications to Maintain Safe Handling and Storage, and to Conduct Processing Studies of 60 Transuranic Remediated Nitrate Salt Waste Drums at Los Alamos National Laboratory, Los Alamos, New Mexico

  • May 2, 2016

    Site-Wide Environmental Impact Statement for the Y-12 National Security Complex

  • February 22, 2016

    Proposed Use of a Tritium Gas Target at the Thomas Jefferson National Accelerator Facility; Newport News, VA

  • February 16, 2016

    Proposed Conveyance of the American Museum of Science and Energy and Associated Property, Parcel G, and Parcel 279.01

  • February 16, 2016

    Uranium Lease and Take-Back Program for Irradiation for Production of Molybdenum-99 for Medical Use

  • January 8, 2016

    Proposed Shipment of Commercial Spent Nuclear Fuel to DOE National Laboratories for Research and Development Purposes (DOE/EIS-0203-SA-07 and DOE/EIS-0250F-S-1-SA-02)

  • December 2, 2015

    Foreign Research Reactor Spent Nuclear Fuel Acceptance Program: Highly Enriched Uranium Target Residue Material Transportation

  • September 15, 2015

    LINAC Coherent Light Source-Il, SLAC National Accelerator Laboratory, Menlo Park, California

  • June 15, 2015

    Whistling Ridge Energy Project; Skamania County, Washington

  • June 12, 2015

    Two Proposed Shipments of Commercial Spent Nuclear Fuel to Idaho National Laboratory for Research and Development Purposes

  • May 28, 2015

    Hanford Comprehensive Land-Use Plan Environmental Impact Statement

  • May 13, 2015

    Texas Clean Energy Project (TCEP), Ector County, Texas

  • February 24, 2015

    Texas Clean Energy Project, Ector County, Texas

  • January 23, 2015

    Chemistry and Metallurgy Research Building Replacement Project at Los Alamos National Laboratory, Los Alamos, New Mexico Supplement Analysis

  • December 29, 2014

    Operational and Engineering Modifications and Regulatory Review – Supplement Analysis of Site-Specific and Programmatic EISs, Strategic Petroleum Reserve, New Orleans, Louisiana

  • November 20, 2014

    University of Maine's Deepwater Offshore Floating Wind Turbine Testing and Demonstration Project - Castine Harbor Test Site in Hancock County, Maine

  • October 18, 2014

    Final Supplement Analysis for the Environmental Assessment for the Lease of Land for the Development of a Research Park at Los Alamos National Laboratory

  • August 25, 2014

    High-Level Waste Tank Closure Final Environmental Impact Statement for the Savannah River Site

  • August 7, 2014

    Proposal to Transport Low-Level Radioactive Waste Material Generated by the Consolidated Edison Uranium Solidification Project from the Oak Ridge National Laboratory to the Nevada National Security Site for Disposal

  • March 26, 2014

    Supplement Analysis for a Proposal to Temporarily Store Defense Transuranic Waste Prior to Disposal at the Waste Isolation Pilot Plant, New Mexico and Texas

  • October 10, 2013

    Haxtun Wind Energy Project, Logan and Phillips Counties, CO

  • September 10, 2013

    Nuclear Infrastructure Programmatic Environmental Impact Statement Supplement Analysis Determination for Plutonium-238 Production for Radioisotope Power Systems

  • September 5, 2013

    University of Maine's Deepwater Offshore Floating Wind Turbine Testing and Demonstration Project - Castine Harbor Test Site in Hancock County, Maine

  • June 14, 2013

    Final Environmental Assessment of Construction and Operation of a Physical Sciences Facility at the Pacific Northwest National Laboratory, Richland, Washington