Steering committee
| Andra | Agence nationale pour la gestion des dechets radioactifs Centro de Investigaciones Energeticas, Medioambientales y |
Jean Talandier |
| BGS | British Geological Survey | Richard Shaw Jon Harington Andrew Kingdon |
| NDA | Nuclear Decommisioning Authority | Simon Norris |
| NAGRA | National Cooperative for the Disposal of Radioactive Waste | Joerg Rueedi |
| POSIVA | POSIVA Oy | Kari Koskinen |
| SCK-CEN | Nucleaire | Geert Volckaert |
| SKB | Svensk Karnbranslehantering AB Studiecentrum voor Kernenergie/Centre d'Etude de L'Energie |
Patrik Sellin |