Safeguards & Security


To continuously improve Safeguards & Security (S&S) performance across DOE by focusing on the protection of Special Nuclear Material (SNM), sensitive information, classified matter, assets, and personnel. The SSWG adds value by bringing together the best and brightest DOE and industry S&S professionals to analyze issues and develop cost-effective solutions that bring clarity and continuous improvement to the DOE missions.

Upcoming Events

Safeguards & Security Working Group Meeting will take place at on 04/14/2020 - 04/16/2020 at 4:00 am

EFCOG 2020 Annual Meeting will take place at on 06/02/2020 - 06/03/2020 at 4:00 am



Wade F. Nelson

Chair Los Alamos National Laboratory Work PO Box 1663 Los Alamos NM 87545 USA Work Phone: 505-606-0395

Mike Schwartz

Vice Chair Pacific Northwest National Laboratory Work PO Box 999, MS-K6-15 Richland, WA WA 99352 United States Work Phone: (509) 375-2618

Michelle J. Stellflug

Secretary Pacific Northwest National Laboratory Work P.O. Box 999 Richland WA 99352 USA Work Phone: 509-371-7533

EFCOG Sponsoring Directors

John Clymo

Photo of John Clymo
Director Sandia National LaboratoriesAssoc Lab Director for Infrastructure Operations Work P.O. Box 5800, MS 0143 Albuquerque NM 87185

As the NTESS Infrastructure Operations Associate Lab Director, John Clymo will provide leadership to effectively and efficiently manage infrastructure operations, including safeguards and security, environmental restoration and waste management, laboratory facilities and construction, and emergency management.

Clymo has over 30 years of experience in facility and infrastructure operations, maintenance and construction for Department of Energy contractors, university-run laboratories, Department of Defense military installations, and a college campus. He was the Director of Infrastructure Programs at the Idaho National Engineering and Environmental Laboratory, where he led the physical assets maintenance & operations activities. He spent 2 years as Senior Manager of Business & Operations for Lawrence Livermore National Laboratory and 5 years as Deputy Manager for Operations at the Nevada National Security Site. While engaged in Department of Energy work, Clymo served 8 years in leadership positions with the Energy Facilities Contractor Group facilities subgroup. Previously, Clymo spent 18 years with Johnson Controls/Pan Am World Services as General Manager and in other management roles. He also served on the Board of Directors for three different international facility management companies operating in the Asia/Pacific region.

Liz Porter

Photo of Liz Porter
Director LeidosSenior Vice President, Federal Energy & Environment Work 111951 Freedom Drive Reston VA 20190 United States

 Elizabeth (Liz) Porter currently serves as Senior Vice President, Federal Energy & Environment for Leidos Civil, where she oversees an organization that provides world class environmental science, energy and engineering solutions/services to all our federal, state and local clients including the Department of Energy, the Environmental Protection Agency, and the Nuclear Regulatory Commission.

 Previously, Ms. Porter served as the DoDIN & Mission Partner Program Director, for Leidos Defense. In this capacity, she was responsible for the oversight of the Defense Information System Agency Global Services Management-Operations task orders in support of Joint Information Environment.  These task orders include efforts focused on new Joint Force Headquarters, Joint Regional Security Stacks, Mission Partner Support and multiple other DISA Enterprise Services.

 Prior to that she served as the Director of Energy Initiatives, Corporate Engineering & Technology (CE&T) at Lockheed Martin.  In that role, she was responsible for developing and executing the strategy for the energy campaign working closely with business areas and corporate strategy and business development to leverage capabilities and grow the business in the expanding energy market from February 2009 to April 2012. Selected by the Department of Energy and MIT as first-ever recipient of the U.S. Clean Energy Education and Empowerment (C3E) Initiative Award (Corporate Implementation) in 2012.

 Throughout her career, Ms. Porter has led several critical initiatives for Lockheed Martin, including advanced programs (proposal execution) management, engineering and operations management for the Defense Messaging System, database design and software development for the Global Transportation Network all for Lockheed Martin’s Mission Systems.  She started her career with Lockheed Martin’s Space Systems Company (prior General Electric Astro) as a solar array design and electrical power subsystem engineer.

Ms. Porter graduated from Villanova University with a bachelor’s degree in Electrical Engineering and from the University of Colorado with a master’s degree in Business Administration. Ms. Porter’s serves on the Industrial Advisory Board to the Engineering Department at Villanova University, and on the advisory board of the Montgomery County Business Round Table for Education.


DOE Liaison

Marc Brooks

Supervisory Security Specialist US Department of Energy Work 1000 Independence Ave SW. 760-11G Washington DC 20585 Work Phone: (301)903-4291

Subgroups and Leadership

Information Security Subgroup

Material Control & Accountability Subgroup

Physical Protection Subgroup

Program Planning & Management Subgroup


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Spring 2018 MC&A Meeting    

Material Control and Accountability Subgroup    

Physical Protection Subgroup