Lawrence Livermore National Laboratory’s (LLNL) primary mission is research and development in support of national security. As a nuclear weapons design laboratory, LLNL has responsibilities in nuclear stockpile stewardship. LLNL also applies its expertise to prevent the spread and use of weapons of mass destruction and strengthen homeland security. Other areas include advanced defense technologies, energy, environment, biosciences, and basic science.
Enforcement
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Nuclear safety deficiencies that occurred between 2019 and 2022 revealed multiple violations of DOE nuclear safety requirements by Mid-America Conversion Services, LLC at Portsmouth Paducah Project Office.January 20, 2026 -
Electrical Shock Event at the Brookhaven National LaboratoryJanuary 16, 2026 -
Unauthorized access of a high radiation area at the Lawrence Livermore National Laboratory.December 19, 2025
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Thumb Amputation at Savannah River SiteNovember 21, 2025
Safety Oversight Reports
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Independent Assessment of Work Planning and Control at the Strategic Petroleum Reserve Bayou Choctaw SiteFebruary 5, 2026 -
Independent Assessment of the Idaho National Laboratory Emergency Management 2025 Annual ExerciseJanuary 20, 2026 -
Independent Assessment of Training and Qualification Programs for Nuclear Facility Personnel at the Hanford SiteJanuary 20, 2026 -
Independent Assessment of the 2025 Full-scale Emergency Management Exercise at the Savannah River SiteJanuary 20, 2026
Security and Cybersecurity Oversight Reports
Independent Limited-Notice Performance Test Assessment of Safeguards and Security at the Lawrence Livermore National Laboratory, March 31, 2023
Independent Multi-Topic Assessment of Safeguards and Security at the Lawrence Livermore National Laboratory, December 22, 2021
Results of Limited-Notice Performance Tests at the Lawrence Livermore National Laboratory, Conducted February 19-21, 2019
Office of Enterprise Assessments Safeguards and Security Assessment at the Lawrence Livermore National Laboratory, March 28, 2018
Independent Assessment of the Classified Cyber Security Program at the Lawrence Livermore National Laboratory, January 2017
Independent Oversight Review of the Unclassified and Classified Cyber Security Programs at the Lawrence Livermore National Laboratory- July 2014
Results of Limited-Notice Performance Tests at the Lawrence Livermore National Laboratory, Conducted on March 4-5, 2014
Independent Oversight Security Inspection of Classified Matter Protection and Control at Lawrence Livermore National Laboratory, February 2014
Review of the Classified Cyber Security Program at Lawrence Livermore National Laboratory – August 2011
Independent Oversight Performance Testing at Lawrence Livermore National Laboratory, January 31, 2011
Independent Oversight Special Follow-up of Security Programs at the Livermore Site Office and the Lawrence Livermore National Laboratory, June 12, 2009
Independent Oversight Safeguards and Security Inspection of the Livermore Site Office and the Lawrence Livermore National Laboratory, June 26, 2008
Independent Oversight Safeguards and Security Inspection of the Oakland Operations Office and the Lawrence Livermore National Laboratory, April 12, 2002
Independent Safeguards and Security Follow-up Inspection of the Lawrence Livermore National Laboratory, September 29, 2000
Independent Safeguards and Security Follow-up Inspection of the Lawrence Livermore National Laboratory, January 14, 2000