About Technical Advisory Committee（TAC）
NUMO established the International Technical Advisory Committee (ITAC) in June 2001, with the intention of transferring know-how from other national disposal programs to the Japanese program and also ensuring that NUMO's technical work is of an appropriate international standard.
In 2015, ITAC and DTAC (Domestic Technical Advisory Committee) were merged and the new advisory body was established as TAC (Technical Advisory Committee) which consists of both overseas and Japanese experts.
Committee member
(Alphabetical order, as of 22 April, 2026)
| Chairperson | Takayuki Sasaki | Professor, Graduate School of Engineering, Department of Nuclear Engineering, Kyoto University |
| Committee | Hiroshi Abe | Associate Professor, Graduate School of Engineering, Department of Quantum Science and Energy Engineering, Tohoku University |
| Tetsuro Hirono | Professor, Graduate School of Science Department of Geosciences, Osaka Metropolitan University | |
| Hiroyuki Inoue | Associate Professor, Graduate School of Engineering, Division of Science and Engineering for Materials, Chemistry and Biology, Osaka Metropolitan University | |
| Akira Kirishima | Professor, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University | |
| Taishi Kobayashi | Associate Professor, Graduate School of Engineering, Department of Nuclear Engineering, Kyoto University | |
| Tomofumi Koyama | Professor, Faculty of Societal Safety Sciences, Kansai University | |
| Kenichiro Nakarai | Professor, Graduate School of Advanced Science and Engineering, Civil and Environmental Engineering Program, Hiroshima University | |
| Takumi Saito | Professor, School of Engineering, Nuclear Professional School, The University of Tokyo | |
| Tsutomu Sato | Professor, Graduate School of Engineering, Division of Sustainable Resources Engineering, Hokkaido University | |
| Yukio Tachi | Director, Horonobe Underground Research Center, Horonobe Underground Research Department, JAEA (Japan Atomic Energy Agency) | |
| Keiko Tagami | Group leader, Quantum Medical Science Directorate, National Institutes for Quantum Science and Technology | |
| Koji Umeda | Professor, Graduate School of Science and Technology, Hirosaki University |
| Vice Chairperson | Ian McKinley | McKinley Consulting |
| Committee | Chris Boyle | Vice-President and Chief Engineer, NWMO |
| Irina Gaus | Head of Department Optimisation and Member of the Executive Board, Nagra | |
| Neil Hyatt | Chief Scientific Adviser, NWS | |
| Haeryong Jung | Head of HLW Research Institute, KORAD | |
| Pascal Claude Leverd | General Inspector, ANDRA | |
| Magnus Odén | Head of Unit Water (Hydrogeology, Hydrochemistry and Transport), SKB | |
| Erik K. Webb | Director, Energy Security Innovation Center, SNL |
