National Environmental Policy Act (NEPA) documents related to pit production (selected)
updated 3 Mar 2026

EA-2199: Los Alamos National Laboratory Electrical Power Capacity Upgrade Project (EPCU), Aug 2025
      – Draft EIS, Nov 16, 2023
      – Final EIS, Sep 6, 2024
      – FONSI, Aug 12, 2025
      – U.S. Forest Service website for the EPCU
      – NNSA/DOE-EM Town Hall Meeting, Greg Mello testimony, video, Jul 22, 2024
      – LASG scoping comments, May 21, 2021

EIS-0573: Programmatic Environmental Impact Statement for Plutonium Pit Production
      – NOI, May 9, 2025
      – LASG's comments, Jul 14, 2025

EIS-0552: Site-Wide Environmental Impact Statement for Continued Operation of the Los Alamos National Laboratory, New Mexico, Jan 10, 2025
      – DOE/EIS-0552: Notice of Intent
      – Draft EIS, Summary
      – Vol 1
      – Vol 2
      – Scoping Meeting for SWEIS
      – LASG letter to Congressional Colleagues: Testimony from citizens hearing on LANL expansion and pit production, Oct 17, 2020
      – Notice of Intent to Prepare a SWEIS, Aug 19, 2022
      – LASG initial scoping comments on SWEIS, Sep 11, 2022
      – LASG comments on draft SWEIS, Apr 10, 2025

EIS-0549: Surplus Plutonium Disposition Program
   – NOI, Dec 16, 2020
   – Public Scoping Meetings Materials & Transcripts, Mar 12, 2021
   – Draft EIS, Dec 16, 2022
   – ROD, Apr 19, 2024

Final, Dec 2023
      – Summary
      – Vol 1
      – Vol 2
      – Vol 3

EIS-0541: Plutonium Pit Production at the Savannah River Site (SRS)
      – NOI for SRS-EIS for Plutonium Pit Production, Jun 10, 2019
   – SRS-EIS scoping presentation by Dr Jane Summerson, Jun 27, 2019
   – LASG's comments, Jul 25, 2019
   – SRS-EIS, Draft, Apr 2020:
      – Summary
      – Vol 1
      – Vol II
   – LASG's comments, Jun 2, 2020
   – SRS-EIS, Final, Sep 2020:
      – Summary
      – Vol 1
      – Vol 2
      – ROD, Nov 5, 2020

EA-2052: Proposed Changes for Analytical Chemistry and Materials Characterization at the Radiological Laboratory/Utility/Office Building, Los Alamos National Laboratory, Los Alamos, New Mexico - Jul 2018
   – LASG's comments, Apr 25, 2018

EIS-0380: Site-Wide Environmental Impact Statement for Continued Operation of the Los Alamos National Laboratory, New Mexico
   – May 2008:
      – Vol 1
      – Vol 2
      – Vol 3
   – SWEIS-SecondROD, Jul 10, 2009
   – SWEIS-AROD, Jul 8, 2011
   – Supplement Analysis (SA-05), final, Apr 2018
   – Supplement Analysis, draft, Mar 2020
   – LASG comments, May 9, 2020
   – Supplement Analysis, final, Aug 2020
   – SWEIS-AROD, Sep 2, 2020
   – LASG initial SWEIS scoping comments, Sep 11, 2022
   – LASG documents in support of our scoping comments, Sep 11, 2022
   – LASG final SWEIS scoping comments, Oct 18, 2022

EIS-0350: Environmental Impact Statement for the Chemistry and Metallurgy Research Building Replacement (CMRR) Project at LANL
   – CMRR-NOI, Jul 23, 2002
   – LASG's comments, Draft CMRR-EIS, Aug 14, 2002
   – Draft CMRR-EIS, May 2003
   – Final CMRR-EIS, Nov 2003
   – CMRR Record of Decision, Feb 12, 2004
   – DOE/EIS-0350-SA-01, Draft SA, Changes to the Location of the CMRR Facility Components, Jan 2005
   – DOE/EIS-0350-SA-02, Draft SA for the CMRR, Aug 11, 2010
   – LASG's comments, CMRR-NF-SEIS, Nov 20, 2010
   – DOE/EIS-0350-S1, Draft SEIS for the CMRR Nuclear Facility, Apr 29, 2011
   – LASG's comments, CMRR-NF Draft SEIS, Jun 28, 2011
   – NNSA/DOE Final Supplemental Environmental Impact Statement (SEIS) for the Nuclear Facility Portion of the CMRR Project at LANL, Sep 2, 2011
      • EIS-0350-FSEIS_Summary-2011.pdf
      • EIS-0350-FSEIS_Volume_1-2011.pdf
      • EIS-0350-FSEIS_Volume_2-2011.pdf

   – NNSA/DOE Amended ROD for the Final SEIS for the Nuclear Facility Portion of the CMRR, Oct 18, 2011
   – Mitigation Action Plan for the Nuclear Facility Portion of the CMRR Project, EIS-0350-SA-1, Nov 1, 2011
   – DOE/EIS-0350-SA-02, CMRR SA, Jan 23, 2015

EIS-0238: Site-Wide Environmental Impact Statement for Continued Operation of the Los Alamos National Laboratory, New Mexico, Jan 1999
   – Vol 1
   – Vol 2
   – Vol 3

EA-1207: Pit Disassembly and Conversion Demonstration Environmental Assessment and Research and Development Activities, Aug 1998

EIS-0236: Final Programmatic Environmental Impact Statement, Stockpile Stewardship and Management
   – FEIS, Jul 10, 1996
   – Record of Decision, Dec 26, 1996
   – Supplement Analysis: Enhancement of Pit Manufacturing at LANL, SSM-PEIS, Mar 1998 (with notes by Greg Mello)
EIS-0236-SA-06: Supplemental Analysis, Pit Manufacturing Facilities at Los Alamos National Laboratory, Jun 1999
   – Draft SSM-PEIS, Jun 1, 1999
   – Final SSM-PEIS, Sep 2, 1999
EIS-0236-S2: Draft Supplemental PEIS on Stockpile Stewardship and Management for a Modern Pit Facility, May 2003
   – Summary, May 2003
   – Volume 1, Chapters 1-11
   – Volume 2, Appendices A-H
EIS-0236: Programmatic Environmental Impact Statement for Stockpile Stewardship and Management
   – NOI to prepare a supplement to the PEIS, Oct 19, 2006
   – Final Complex Transformation SPEIS - summary, Oct 24, 2008
   – Vol1
   – Vol 2
   – Vol 3a
   – Vol 3b
EIS-0236-S4: Complex Transformation Supplemental Programmatic Environmental Impact Statement (CTSPEIS), Supplement Analysis (SA)
   – Draft CTSPEIS-SA, Jun 2019
   – LASG's comments, Aug 12, 2019
   – LASG's comments, addendum, Aug 14, 2019
   – Final CTSPEIS-SA, Dec 2019
   – CTSPEIS-AROD, Sep 2, 2020
   – CTSPEIS-AROD, Nov 5, 2020

EIS-0018: Continued Operation of Los Alamos Scientific Laboratory Site, Los Alamos, New Mexico, Dec 1979