Y-12, Pantex employees selected for prestigious Weapons Internship Program
Sandia National Laboratories (M&O) Contract Competition
Pantex Protective Force hailed as “well prepared, well trained”
Head of Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) Preparatory Commission Visits NNSA’s Nevada National Security Site (NNSS) for First Time
Livermore Field Office sets core values as part of continuous improvement process
NNSA sites take home 15 R&D Awards
  • Weapons internships
  • Sandia competition
  • Pantex force
  • CTBTO visit
  • Core values set
  • R&D Awards
Maintaining the Stockpile
Emergency Response
Powering the Navy
Oversight and Change


  • Enterprise Strategic Vision: A foundational document that lays out the organization’s vision for the future

  • 20 Years of Success: A look at two decades of the Stockpile Stewardship Program

  • Prevent, Counter, and Respond: A strategic plan to define and describe our missions to prevent, counter, and respond to the threats of nuclear proliferation and terrorism

  • Stockpile Stewardship and Management Plan: NNSA’s plan for maintaining and modernizing the stockpile, revitalizing its physical infrastructure and workforce, and sustaining its research, development, testing, and evaluation programs

About Us

Established by Congress in 2000, NNSA is a semi-autonomous agency within the U.S. Department of Energy responsible for enhancing national security through the military application of nuclear science. NNSA maintains and enhances the safety, security, and effectiveness of the U.S. nuclear weapons stockpile without nuclear explosive testing; works to reduce the global danger from weapons of mass destruction; provides the U.S. Navy with safe and effective nuclear propulsion; and responds to nuclear and radiological emergencies in the U.S. and abroad.