John R. Longenecker, the President of Longenecker & Associates, Inc. (L&A), has more than 35 years experience in energy and national defense. L&A was founded in 1989 and is a woman-owned, Nevada-based small business, specializing in project delivery, mission assurance and business solutions to the nuclear, environmental management and defense industries. Mr. Longenecker also serves as the Managing Director of the Energy Facility Contractors Group (EFCOG). EFCOG promotes excellence in all aspects of the operation, management, and integration of DOE facilities in a safe, environmentally sound, efficient and cost-effective manner through the ongoing exchange of information on lessons learned. President Bush appointed Mr. Longenecker in December 1992 to serve as Transition Manager for the United States Enrichment Corporation, a government-owned, for-profit corporation that provides uranium enrichment services to electric utilities throughout the world. From 1983 to 1987 Mr. Longenecker served in the Reagan Administration as the Deputy Assistant Secretary for Uranium Enrichment in the U.S. Department of Energy. Prior to managing the U.S. uranium enrichment enterprise, Mr. Longenecker held other management positions in DOE and its predecessor agencies, including serving from 1981 to 1983 as the Program Manager for the CRBRP Project. In this position, Mr. Longenecker was the primary interface with the NRC during the project licensing process. Mr. Longenecker has appeared before the Congress of the United States on numerous occasions, and has presented papers in various national and international forums. Mr. Longenecker is a member of Tau Beta Pi Honorary Engineering Society, the American Nuclear Society (ANS), the University Club, the Porsche Club of America, and the Desert Sportsman Club. Mr. Longenecker serves as a member as a member of the Executive Committee and the Board of Directors of WM Symposia, a non-profit organization dedicated to providing education and information exchange on global waste management issues. L&A directly supports these efforts by providing scholarships annually to students via the Roy Post Foundation. Mr. Longenecker is a lifetime member of the Walter Reed Society, and L&A annually provides financial support to its Wounded Warriors programs. He also is a Trustee of the Nevada Test Site Historical Foundation and a member of the Development Committee of the Las Vegas based National Atomic Testing Museum. Mr. Longenecker received both his Bachelor of Science and Master of Science degrees, with academic honors, from the Pennsylvania State University. Mr. Longenecker was recognized in April 2006 as an Outstanding Engineering Alumnus by Penn State

Director Kim Budil leads a workforce of nearly 8,000 employees and manages an annual operating budget of approximately $2.7 billion. As Laboratory Director she shares the responsibility, along with the directors of Los Alamos and Sandia National Laboratories, of providing the U.S. President, through the Secretaries of Energy and Defense, an annual assessment of the safety, security, and effectiveness of the U.S. nuclear weapons stockpile, and whether confidence in the stockpile can be maintained without a nuclear test. She is strongly committed to LLNL's tradition of scientific and technical excellence in service to the Nation. Budil has more than three decades of experience across LLNL's scientific and national security programs. She most recently served as the Principal Associate Director for Weapons and Complex Integration, responsible for the programs that ensure the safety, security, and effectiveness of the Nation's nuclear deterrent as well as advancing the supporting science, technology, and engineering capabilities. Prior to this, she served as the Vice President for National Laboratories at the University of California Office of the President, where she led the University's oversight and governance of LLNL, Lawrence Berkeley National Laboratory, and Los Alamos National Laboratory. She served twice on special assignment in Washington, DC, including as a Senior Adviser to the Under Secretary for Science at the Department of Energy (DOE). She has served on many boards and committees and has been an active champion for diversity, equity, and inclusion at the national labs and beyond. She has M.S. and Ph.D. degrees in applied science/engineering from University of California, Davis where she was the recipient of a Hertz Foundation Fellowship, and a B.S. in physics from the University of Illinois at Chicago. Dr. Budil completed a certificate in national security affairs from the Bush School of Government and Public Policy at Texas A&M University. In 2019 she was named a Fellow of the American Physical Society.

As the Nuclear Deterrence Associate Labs Director and Chief Engineer for Nuclear Weapons, Steve Girrens leads Sandia's nuclear weapons program, which includes stockpile management and stewardship, research and development, systems planning and integration, manufacturing of assigned components, and technical support for National Nuclear Security Administration (NNSA) weapon production plants. Before joining Sandia, Steve spent nearly 40 years working at Los Alamos National Laboratory (LANL) in almost all facets of engineering, including preliminary design, computational analysis, prototype testing, and transition to manufacturing. As Associate Director for Engineering Sciences, he guided engineering capability advancement and programmatic delivery that emphasized applied engineering technology, accelerator operations and technology, and prototype fabrication in support of LANL's national security missions. He has expertise in mechanical engineering design and analysis, fracture and thermo-mechanics analysis, computational mechanics, project and personnel management, and technology transfer. Steve also worked in the NNSA's Office of Defense Programs on matters of policy, planning, and analysis, and served on the LANL Director's Red Team for Stockpile Annual Assessment and Certification. He is a Fellow of the American Society of Mechanical Engineers and a registered Professional Engineer (PE) in New Mexico.

Thom Mason became the 12th Director of Los Alamos National Laboratory and President of Triad National Security, LLC, in November 2018. The Laboratory is a principal contributor to the U.S. Department of Energy mission to maintain the nation's nuclear weapons stockpile. Los Alamos uses innovative science and technology to enhance global nuclear security and protect the world. Los Alamos has an annual operating budget of over $3 billion, roughly 13,000 employees, and a nearly 40‐square‐mile site featuring some of the most specialized scientific equipment and supporting infrastructure in the world. For the past 30 years, Thom has been involved in the design and construction of scientific instrumentation and facilities and the application of nuclear, computing, and materials sciences to solve important challenges in energy and national security. Most recently Thom was the Senior Vice President for Global Laboratory Operations at Battelle where he had responsibility for governance and strategy across the six National Laboratories that Battelle manages or co‐manages. Prior to joining Battelle, Thom worked at Oak Ridge National Laboratory (ORNL) for 19 years, including 10 years as the laboratory director. Under his leadership, ORNL saw significant growth in programs, new facilities, and hiring while achieving record low safety incident rates. Before becoming laboratory director, he was associate laboratory director (ALD) for Neutron Sciences, ALD for the Spallation Neutron Source (SNS), and director of the Experimental Facilities division. Thom was active in the community during his time in Oak Ridge, serving as chair of the Oak Ridge Public Schools Education Foundation and of Innovation Valley, the Knoxville‐Oak Ridge area regional economic development organization. He moved to ORNL from the University of Toronto, where he was a faculty member in the Department of Physics. Thom previously worked as a senior scientist at Risø National Laboratory and a postdoctoral researcher at AT&T Bell Laboratories. Thom holds a PhD in Experimental Condensed Matter Physics from McMaster University and a BSc in Physics from Dalhousie University.

Dr. Charles P. Verdon is NNSA's Deputy Administrator for Defense Programs. He leads the team that directs the Stockpile Stewardship Program, which is responsible for maintaining the safety, security, and reliability of the Nation's nuclear weapons stockpile. Confirmed by the Senate on Sept. 18, 2018, Dr. Verdon was sworn in on Oct. 9, 2018. Prior to joining NNSA, he was the Principal Associate Director within the Weapons and Complex Integration Directorate at Lawrence Livermore National Laboratory. In this role, he was responsible for the management and coordination of all of the lab's weapons program activities. Before that, Dr. Verdon served as the Directorate's Principal Deputy Principal Associate Director, Program Director for the Secondary Nuclear Design Program, and the AX-Division Leader. In these roles, he worked to maintain national and global security by maintaining scientific and technical leadership in all aspects of thermonuclear weapon physics design and operation. He was also responsible for the management of the scientific grand challenge effort of achieving ignition at the National Ignition Facility. Dr. Verdon was selected as a Fellow of the American Physical Society in 1997. In addition, in 1995 the society awarded him the Excellence in Plasma Physics Research Award for outstanding theoretical work, computational design and analysis, and experimental work leading to quantitative and predictive understanding of aspects of high-energy density plasmas. Dr. Verdon holds a doctorate in nuclear engineering from the University of Arizona.

Christine Gelles has nearly 25 years' experience in the US Department of Energy. Her core skills include: strategic program planning, policy development and problem solving, project planning, management, budget formulation, execution and review; program management and assessment; comprehensive understanding of environmental laws, regulations and policies, as well as federal budgetary and accounting policy; and extensive knowledge and understanding of the Department of Energy's waste management and nuclear materials management programs.

Peggy McCullough is responsible for Bechtel's Nuclear Security, Operations, and Environmental business line, executing more than $5 billion in missions for the U.S. and allied governments. Her customers partner with Bechtel to undertake some of the world's most complex and sensitive projects and programs, including management and operation of a U.S. national laboratory and two security plants, environmental cleanup of radioactive and hazardous wastes, and procurement and engineering support for the U.S. Naval Reactors program. Those projects and sites employ more than 20,000 scientists, engineers, technicians, skilled craftspeople, and other professionals. Prior to her current role, Peggy was manager of Strategic Planning and Marketing & Business Development. She grew Bechtel's portfolio of business for government and commercial nuclear power customers and oversaw customer relationships and development for three multi-billion-dollar business lines. She has also served as president of Bechtel Power Corp., overseeing projects executing construction, licensing and safety analyses, and maintenance of commercial nuclear power plants; and shaping the future of advanced nuclear power as a vital and reliable source of energy without emitting greenhouse gases. McCullough has more than three decades of engineering, procurement, construction, startup and commissioning, and operations experience. She became a Bechtel senior vice president in 2014 From 2003 to 2006, McCullough was deputy general manager of Bechtel SAIC, the management and operations contractor on the U.S. Department of Energy's Yucca Mountain Project. She then served as manager of Functions for the Bechtel division handling government work. McCullough then served in Australia as project director of the Daunia Coking Coal Project in Queensland where she took the project to greater than 95 percent completion under budget and ahead of schedule. More recently, McCullough was project director for the $16.8 billion Waste Treatment and Immobilization Plant at the Department of Energy's Hanford site in Washington state, the nation's most complex radioactive waste treatment plant, leading the team that made significant progress toward construction completion and startup of the plant's first phase. She was awarded the 2019 Henry Laurence Gantt Medal by the American Society of Mechanical Engineers for her contributions to the field. Peggy holds a bachelor's degree in electrical engineering from San Francisco State University.

As the President of Mission Support and Test Services, Mark Martinez provides leadership and management direction for the effective and efficient execution of all operations at the Nevada National Security Site and leads development of a visionary and executable strategic plan. Martinez has 30 years of experience managing complex and multidisciplinary nuclear, technical, business, operational and site services. He spent the past 23 years at Lawrence Livermore National Laboratory, most recently leading as Vice President and Principal Associate Director for Operations and Business, working to implement key strategic initiatives and operations and infrastructure improvements. While at LLNL, Martinez gained both programmatic and operational expertise through diverse assignments and developed key relationships with employees and external stakeholders. He was a senior Test Director responsible for executing LLNL experimental activities at the Nevada Test Site which encompassed comprehensive oversight of complex technical, construction, ES&H, quality assurance, security, external communications, and other management functions for large-scale projects. He also served as the Program Leader for the Nuclear Materials Technology Program, the Nevada Experiments and Operations Acting Program Leader, and the Deputy Principal Associate Director in the Weapons & Complex Integration. Martinez has a strong background leading transformations. At LLNL's Weapons and Complex Integration, he strengthened the rigor and changed the culture to a high-performing team. In addition, NNSA requested Martinez's leadership in leading improvements in multi-nation nuclear defense experiments in Nevada.

Eric Wollerman is president of Honeywell Federal Manufacturing & Technologies (FM&T). FM&T manages and operates the U.S. Department of Energy's Kansas City National Security Campus (KCNSC). With over 5,500 employees in Kansas City and Albuquerque, the KCNSC provides national security through their diverse engineering, manufacturing and secure supply chain management activities. As FM&T president, Wollerman is responsible for applying best-in-class commercial standards in managing operations and delivering outstanding mission results with a $1.8B annual operations budget. Since joining FM&T in April 2020, Wollerman has been leading KCNSC's strategies, including: ensuring the safety of employees and execution of the national security mission during the COVID-19 pandemic; delivering operational excellence in nuclear weapons and national security missions with a focus on quality, early design engagement and delivery requirements; strategic planning for KCNSC's infrastructure, supply base and workforce needs for today and the future; and enhancing the organization's Inclusion, Diversity, Equity & Acceptance (IDEA) strategies. In addition to leading the Honeywell FM&T business, Eric supports community reinvestment. FM&T's pillars of giving include: workforce development: STEMM education: veterans and military families: family safety and security; diversity & inclusion; and, community impact. Wollerman is a board member for the Greater Kansas City Chamber of Commerce & has membership roles with the Kansas City Civic Council and the Kansas City Area Development Council. Wollerman's Honeywell career began in 2005 within its Integrated Supply Chain. His driving improvements in supplier quality, implementation of lean manufacturing, success in managing operations & ability to forge strong customer relationships soon led to senior leadership roles within Honeywell Aerospace. He also ran operations for several manufacturing plants within the Aerospace portfolio and led global customer service operations for Aerospace's Customer & Product Support organization. His academic degrees include a Bachelor's of Science in Industrial Engineering and a Master's of Science in Industrial & Systems Engineering from the University of Wisconsin - Madison. Eric also holds a Certificate of Aircraft Maintenance & Technology from Embry-Riddle Aeronautical University and is a certified Lean Expert.

Peggy McCullough is responsible for Bechtel's Nuclear Security, Operations, and Environmental business line, executing more than $5 billion in missions for the U.S. and allied governments. Her customers partner with Bechtel to undertake some of the world's most complex and sensitive projects and programs, including management and operation of a U.S. national laboratory and two security plants, environmental cleanup of radioactive and hazardous wastes, and procurement and engineering support for the U.S. Naval Reactors program. Those projects and sites employ more than 20,000 scientists, engineers, technicians, skilled craftspeople, and other professionals. Prior to her current role, Peggy was manager of Strategic Planning and Marketing & Business Development. She grew Bechtel's portfolio of business for government and commercial nuclear power customers and oversaw customer relationships and development for three multi-billion-dollar business lines. She has also served as president of Bechtel Power Corp., overseeing projects executing construction, licensing and safety analyses, and maintenance of commercial nuclear power plants; and shaping the future of advanced nuclear power as a vital and reliable source of energy without emitting greenhouse gases. McCullough has more than three decades of engineering, procurement, construction, startup and commissioning, and operations experience. She became a Bechtel senior vice president in 2014 From 2003 to 2006, McCullough was deputy general manager of Bechtel SAIC, the management and operations contractor on the U.S. Department of Energy's Yucca Mountain Project. She then served as manager of Functions for the Bechtel division handling government work. McCullough then served in Australia as project director of the Daunia Coking Coal Project in Queensland where she took the project to greater than 95 percent completion under budget and ahead of schedule. More recently, McCullough was project director for the $16.8 billion Waste Treatment and Immobilization Plant at the Department of Energy's Hanford site in Washington state, the nation's most complex radioactive waste treatment plant, leading the team that made significant progress toward construction completion and startup of the plant's first phase. She was awarded the 2019 Henry Laurence Gantt Medal by the American Society of Mechanical Engineers for her contributions to the field. Peggy holds a bachelor's degree in electrical engineering from San Francisco State University.

James McConnell is the Associate Principal Deputy Administrator, a position he has held since December 2021. He is a member of NNSA's executive leadership team, providing advice to the Administrator and Principal Deputy Administrator on programmatic and policy issues. Previously, Mr. McConnell was Associate Administrator for Safety, Infrastructure and Operations, where he was responsible for overall NNSA safety activities, operations, infrastructure, capital planning, packaging and transportation, nuclear materials integration and sustainment & environmental programs for the National Security Enterprise. In addition, he was NNSA's Central Technical Authority responsible for safety policy and interpretation throughout NNSA. Before that, Mr. McConnell was the Deputy Associate Administrator for Infrastructure and Operations. He held several positions within NNSA's Office of Defense Programs, including Assistant Deputy Administrator for Nuclear Safety and Operations. Mr. McConnell was NNSA's first Chief of Defense Nuclear Safety. In that position, he established the office and its functions. Prior to joining NNSA, Mr. McConnell held several senior staff positions at the Defense Nuclear Facilities Safety Board including Deputy Technical Director, Group Leader for the Nuclear Weapons Program, and Site Representative at the Pantex Plant. A former U.S. Navy submarine officer, Mr. McConnell holds a bachelor's degree in electrical engineering from the U.S. Naval Academy and master's degrees in engineering from the Catholic University of America and George Washington University.

Michael Baker is an accomplished cyber security executive passionate about building high performing teams and transforming the way cyber risk is managed within the business. Michael brings nearly 20 years of experience in the field across cyber leadership, talent development, risk management, audit, and compliance serving the aerospace and defense industry as CISO along with a variety of clients across industries as a seasoned consultant. Michael Baker currently serves as Vice President & Chief Information Security Officer (CISO) for GDIT serving within the Office of the CIO. As CISO, he manages a team of professionals across all aspects of internal cyber operations, computer network defense, policy, awareness, incident response, threat intelligence, and secure architecture. In addition, Michael leads the team to identify, assess, and mitigate cyber, IT, and compliance risks for the business. Prior to this role, Mr. Baker worked at EY consulting for a wide variety of clients across the defense, retail, banking, and technology sectors including 11 years for General Dynamics providing cyber and IT services across all GD business units.

As NNSA's Associate Administrator for Information Management and Chief Information Officer (CIO), a position he has held since July 2021, Mr. Wolff manages and implements all operational, technical, and administrative functions in support of NNSA's Cybersecurity and Information Management Program. He oversees and ensures the coordination, integration and continuity of cybersecurity, information technology and telecommunication operations and services throughout the NNSA Nuclear Security Enterprise in support of national security goals and Department of Energy (DOE)/NNSA strategies. Mr. Wolff began his career as a surface warfare officer in the U.S. Navy. He worked in the Office of the Department of Defense CIO Office as the Information Technology (IT) Acquisition Policy Lead and Director of Data and Knowledge Management. He also served at the U.S. Naval Academy Alumni Association and Foundation as the Vice President for IT and Strategic Infrastructure and as Deputy CIO of the Overseas Private Investment Corporation. Mr. Wolff continues to support the Office of the Navy Reserve Chief of Naval Operations as a Navy Reservist. His career has focused on IT operations, IT acquisition management, and leveraging data for decision-making and operations. Prior to joining NNSA, Mr. Wolff served as the Branch Chief in the Office of Management and Budget, Office of the Federal Chief Information Officer, leading its efforts for the Federal Data Strategy, IT Capital Planning and Investment Control, and IT Modernization. Mr. Wolff earned a bachelor's degree in naval architecture with a minor in Spanish from the U.S. Naval Academy. He earned a master's degree in industrial and systems engineering from Auburn University and a master's degree in government information leadership from the National Defense University. Mr. Wolff also studied at the Colegio Unamuno in Madrid.

David is the co-founder and managing director of the Advanced Nuclear Weapons Alliance (ANWA) Deterrence Center. ANWA Deterrence Center raises awareness and educates about the modernization of the U.S. strategic nuclear deterrent. ANWA Deterrence Center is a 501(c)(3) non-profit organization. David is also the co-founder and Executive Director of the Additive Manufacturing Coalition, which educates and advocates on issues important to the additive manufacturing community. The Additive Manufacturing Coalition is a 501(c)(6) trade association, designation pending. With over 25 years of experience working on and off Capitol Hill, David has worked on science and technology policy issues with a focus on national and homeland security, energy and the environment. David has worked for a Congressman on the Appropriations Committee, on the Professional Staff of the Senate Armed Services Committee, and for an Ivy League University. On behalf of science and technology giant Battelle, David worked to expand federal funding for scientific and technological discovery and application, and to amend laws to build wider support for research and development programs that support our nation's security.

Jeff is the co-founder and managing director of the Advanced Nuclear Weapons Alliance (ANWA) Deterrence Center and ANWA Advocacy. ANWA educates and advocates respectively for the modernization of the U.S. strategic nuclear deterrent. Jeff has spent his career at the policy intersections of national security, energy, environmental and public health policy and brings a wealth of business and government service experience. Jeff is also President & CEO of the Edmondson Hopkins Group, a public affairs and strategic business consulting group. He is Vice President at Full On Communications and Co-founder and Board Member of the Center for Lyme Action. Jeff is the former Vice President of Government Relations for The Babcock & Wilcox Company (B&W), a leading defense contractor for Departments of Defense and Energy, and NASA (BWXT), and a global power generation technology supplier and manufacturer (B&W Enterprise). Prior to B&W, Crater advised and advocated on behalf of electrical utilities on environmental regulation and for national security companies at the former Cauthen and Associates. In Government, he was an advisor to Secretaries of Energy and the Assistant Secretary for Environmental Management during the Clinton Administration, an investigator for the U.S. House Energy and Commerce Oversight and Investigations Subcommittee under Chairman John D. Dingell (D-MI), and on the staff of U.S. Congressman John Dingell.

Mr. Drew Walter is a career member of the Senior Executive Service and serves as the Deputy Assistant Secretary of Defense for Nuclear Matters. In this role, he is responsible for carrying out the Office of Nuclear Matters mission "to ensure the continued credibility, effectiveness, safety, and security of the U.S. deterrent in order to deter nuclear and non-nuclear attack; assure U.S. allies and partners; achieve U.S. objectives if deterrence fails; and hedge against an uncertain future." Nuclear Matters is the Department of Defense (DoD) focal point for a wide range of issues related to the U.S. nuclear weapons stockpile, nuclear counterterrorism, and nuclear counterproliferation. Before being assigned as DASD(NM), Mr. Walter served as Senior Advisor to the Deputy Under Secretary of Defense for Acquisition and Sustainment, The Honorable Alan Shaffer. In this role, Mr. Walter supported the Deputy Under Secretary's efforts to integrate efforts across the Department related to nuclear modernization and sustainment. In 2018, Mr. Walter joined the Department as Principal Director and Senior Advisor in the Office of Nuclear Matters. Prior to joining DoD, Mr. Walter served as a professional staff member with the Committee on Armed Services in the U.S. House of Representatives. In this role, he was responsible for executing committee activities and oversight regarding all policies, programs, and budgets related to nuclear deterrence, nuclear nonproliferation, naval nuclear propulsion, and nuclear environmental cleanup. These responsibilities included oversight and authorization of over $30 billion in annual funding within the Department of Defense and the National Nuclear Security Administration. Mr. Walter began his career at Sandia National Laboratories, where he was a Senior Member of the Technical Staff. His responsibilities at Sandia included conducting physical security assessments for U.S. nuclear weapons, developing and analyzing new security technologies and novel security assessment methodologies, and conducting special studies for laboratory executives. Mr. Walter holds Bachelor's and Master's of Science degrees in Mechanical Engineering, both from the Rochester Institute of Technology.