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The highest decision-making body at RERF is its Board of Councilors, consisting of Councilors elected from Japan and the U.S., and RERF manages its operations based on Articles of Incorporation determined by the Board of Councilors.
The Board of Directors is responsible for the management of RERF’s operations.
The Auditors audit the work of the Directors and the status of RERF’s property/assets. The Directors and Auditors are appointed by the Board of Councilors.
RERF also includes the Scientific Advisory Committee, which makes recommendations based on its evaluation of RERF’s studies, and Local Advisors and Local Liaison Councils, which have been established for reflection of local community input in RERF’s operations.


  James W. Ziglar (Executive Councilor)
Senior Counsel, Van Ness Feldman, Washington, DC
Senior Fellow and Director, Migration Policy Institute, Washington, DC
Principal, The Ziglar Group, Washington, DC and Singer Island, FL

Ryugo Hayano (Vice Executive Councilor)
Emeritus Professor, The University of Tokyo

Hiroo Dohy
Executive Officer, Blood Service Headquarters, Japanese Red Cross Society

Joe W. Gray
Professor and Gordon Moore Endowed Chair, Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University

Shelley A. Hearne
Executive Director, Forsythia Foundation
Visiting Professor, Johns Hopkins Bloomberg School of Public Health, Department of Health Policy and Management

Masaaki Kuniyasu
Former Ambassador Extraordinary and Plenipotentiary to Sri Lanka, the Republic of Portugal, and other nations
Special Advisor to Tomioka Hachimangu Shrine
Chairperson, Bocho Education Organization Council
Director, Bocho Club
Director, The Foundation Nihon Shitsuke no Kai
President, Japan Fado Club

Jonathan M. Samet
Dean, School of Public Health, University of Colorado

Yoshiharu Yonekura
Senior Advisor, National Institutes for Quantum and Radiological Science and Technology
Council Member, Science Council of Japan
Chair, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR)

as of 15 October 2017

Management Staff

Representative Director
Ohtsura Niwa
Vice Chairman and
Executive Director
  Robert L. Ullrich
Executive Director   Kazunori Kodama
Associate Chief of Research   Eric J. Grant
as of 12 January 2018

Organization chart

Personnel Composition

Number of Directors and Staff
as of 1 April 2017
Full-time personnel
Directors, Chief of Secretariat
4 (1)
4 (1)
Professional Staff
28.6 (4)
31.6 (4)
General Staff
161.6 (5)
205.6 (5)
Numbers in parentheses are personnel recruited by US National Academy of Sciences,
Board of Directors Scientific Council Auditors Local Advior Local Liaison Councils Department of Clinical Studies Department of Molecular Biosciences Departments of Epidemiology Department of Statistics Department of Information Technology (ITD) Radioisotope Facility biosample center Department of Clinical Studies Departments of Epidemiology biosample center