Joseph Rivers

Senior Security Consultant

Joe Rivers has over 35 years of experience in nuclear safeguards and security. He has decades of experience in both the DOE and NRC environments. His areas of interest include risk-informing security, vulnerability assessments, material attractiveness, unmanned aerial vehicles (UAVs), advanced reactors and small modular reactors, and radiological security. He has extensive experience both domestically and internationally.

Rivers recently retired from the NRC where he served as the Senior Level Advisor on Security, serving as the lead technical expert on nuclear security. Upon retirement, he established Rivers Security Services, LLC, to perform consulting services. In addition, he entered into a consulting agreement with USA Nuclear to support USA Nuclear’s clients.

Rivers has led many complex technical projects over the years. For the NRC, he developed a new approach to categorize special nuclear material, taking into account the attractiveness of the material to adversaries, an assessment of the vulnerability of commercial nuclear facilities to UAV attacks, development of classification guidance, development of an approach to making inimicality determinations, an assessment of the security of chemicals at nuclear facilities, and developed a number of initiatives to support risk-informing security. While at DOE and as a Chief Scientist at SAIC supporting DOE, his activities included a review of the DOE Graded Safeguards Table, readiness planning for treaty implementation in the nuclear weapons complex, and material control and accountability.

In support of international initiatives, Rivers supported IAEA IPPAS missions and international training courses. He chaired an IAEA Coordinated Research Project on Nuclear Security Assessment Methodologies (NUSAM) and served on numerous consultants groups. He further represented the U.S. Government at meetings with senior officials of many governments around the world.

Rivers received a BS in Mathematics from Rensselaer Polytechnic Institute and studied Statistics in graduate school at the Pennsylvania State University. He is a Fellow of the Institute of Nuclear Materials Management (INMM) and serves as Chair of its Nuclear Security and Physical Protection Technical Division. Through the INMM, he has organized and conducted numerous workshops on risk-informing security.