| Argentina | Rodriguez | Monica | Autoridad Regulatoria Nuclear (ARN) | Member | Yes |
| Australia | Grzechnik | Marcus | Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) | Member | No |
| Austria | Hofer | Peter | Federal Ministry for Climate Action, Environment, Mobility, Innovation and Technology | Member | Yes |
| Bangladesh | Amidul Islam Khan | Mohammad | Ministry of Science and Technology | Member | Yes |
| Belarus | Nikalayenka | Alena | Scientific Practical Center of Hygiene | Member | Yes |
| Belgium | Rasquin | David | Federal Agency for Nuclear Control (FANC) | Member | Yes |
| Brazil | Oliveira | Jair | National Security Office | Member | Yes |
| Brazil | da Silva LApa | Nelbia | National Nuclear Energy Commission (CNEN) | Member | Yes |
| Bulgaria | Simeonova | Lyudmila | Nuclear Regulatory Agency of Bulgaria | Member | Yes |
| Canada | Henderson | Keith | Radiation Protection Bureau, Health Canada | Member | Yes |
| China | Huang | Min | China Atomic Energy Authority | Member | Yes |
| Cyprus | Sisou | Anastasia | Ministry of Labour, Welfare and Social Insurance | Member | Yes |
| Cyprus | Agathocleous | Melpo | Ministry of Labour, Welfare and Social Insurance | Member | Yes |
| Cyprus | Sakkas | Demetris | Ministry of Labour, Welfare and Social Insurance | Member | Yes |
| Cyprus | Tzortzis | Michalis | Ministry of Labour, Welfare and Social Insurance | Member | Yes |
| Cyprus | Pitri | Eleni | Ministry of Labour, Welfare and Social Insurance | Member | Yes |
| Czech Republic | Chochola | Ondrej | State Office for Nuclear Safety (SÚJB) | Member | Yes |
| Denmark | Thomsen | Jimmy | Danish Emergency Management Agency | Member | Yes |
| Egypt | Darwish Mohamed | Moustafa | Egyptian Radiological and Nuclear Regulatory Authority (ENRRA) | Member | Yes |
| Finland | Kuusi | Antero | Radiation and Nuclear Safety Authority (STUK) | Member | Yes |
| France | Reuter | Celine | Autorité de Sûreté Nucléaire (ASN) | Member | Yes |
| Georgia | Dekanoidze | Giorgi | Agency of Nuclear and Radiation Safety Ministry of Environmental Protection and Agriculture of Georgia | Member | Yes |
| Germany | Schlummer | Tobias | Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection | Member | Yes |
| Ghana | Gyekye | Prince Kwabena | Nuclear Regulatory Authority, Ghana | Member | Yes |
| Ghana | Okoh Kpeglo | David | Ghana Atomic Energy Commission | Member | Yes |
| Greece | Economides | Sotirios | Directorate of Training, Regulatory Policy, Infrastructure and Research Greek Atomic Energy Commission (EEAE) | Member | Yes |
| Hungary | Kapitany | Sandor | HAEA | Member | Yes |
| Iceland | Jonsson | Gisli | The Icelandic Radiation Safety Authority (IRSA) | Member | Yes |
| India | Seth | Saras | Department of Atomic Energy (DAE) | Member | Yes |
| Indonesia | Gultom | Dwie Irmawaty | Embassy of Republic of Indonesia and Permanent Mission to the United Nations and Other International Organisations in Vienna | Member | Yes |
| Indonesia | Himawan | Roziq | National Research and Innovation Agency | Member | Yes |
| Indonesia | Yudi Pramono | M.Eng | Nuclear Energy Regulatory Agency | Member | No |
| Iran | Rahimi Khoshmakani | Abbas | Iran Nuclear regulatory authority (INRA) | Member | Yes |
| Ireland | Smith | Kilian | Environmental Protection Agency (EPA) | Member | Yes |
| Israel | Weiss | Rodi | IAEC | Member | No |
| Italy | Scarpato | Silvia | National Inspectorate for Nuclear Safety and Radiation Protection | Member | Yes |
| Japan | Motomitsu | Kunihiko | Nuclear Regulation Authority Radiation Protection Department | Member | Yes |
| Korea, Republic of | Hyungjoon | Yu | Korea Institute of Nuclear Safety (KINS) | Member | Yes |
| Latvia | Stankevics | Jekabs | Radiation Safety Centre of State Environmental Service of Latvia | Member | Yes |
| Libya | Abdoghlil | Anifati | Nuclear Regulatory Office | Member | Yes |
| Lithuania | Ruzele | Paulius | Radiation Protection Centre | Member | Yes |
| Malaysia | Rahman | Halim Abdul | Radiation Control & Supervision Division Department of Atomic Energy, Ministry of Science, Technology and lnovation | Member | Yes |
| Mauritania | Elmounja | Mohamed Mahmoud | National Authority for Radiation Protection, Safety and Nuclear Security (ARSN) | Member | Yes |
| Mexico | Romero Arriola | Edgar Christian | Dirección de Coordinación de Seguridad Radiológica | Member | Yes |
| Mongolia | Enkhgerel | Nyamdavaa | The Executive Office of the Nuclear Energy Commission of Mongolia | Member | Yes |
| Morocco | Benider | Abdelkader | l'Agence Marocaine de Sûreté et de Securite Nucleaires et Radiologiques (AMSSNuR) | Member | Yes |
| Netherlands | van Vuren | Johannes | Authority for Nuclear Safety and Radiation Protection | Member | Yes |
| New Zealand | Markwitz | Andreas | Ministry of Health | Member | No |
| Norway | Ohrstrand | Per Inge | Norwegian Radiation and Nuclear Safety Authority | Member | Yes |
| Pakistan | Hussain | Mazzammal | Pakistan Nuclear Regulatory Authority (PNRA) | Member | Yes |
| Poland | Pelc | Przemyslaw | National Atomic Energy Agency (PAA) | Member | Yes |
| Portugal | Portugal | Luis | Portuguese Environment Agency (APA) | Member | Yes |
| Romania | Ciurea-Ercau | Cantemir | National Commission for Nuclear Activities Control | Member | Yes |
| Russian Federation | Shapovalov | Albert | Scientific and Engineering Centre for Nuclear and Radiation Safety (SEC NRS) | Member | Yes |
| Saudi Arabia | Alkhomashi | Nasser | Nuclear and Radiological Regulatory Commission (NRRC) | Member | Yes |
| Singapore | Ong | May | HTX (Home Team Science & Technology Agency) | Member | Yes |
| Slovakia | Klenovic | Ivan | Nuclear Regulatory of the Slovak Republic | Member | Yes |
| Slovenia | Tomazic | Metka | Slovenian Nuclear Safety Administration | Member | Yes |
| South Africa | Rikhotso | Ronnie | National Nuclear Regulator (NNR) | Member | Yes |
| Spain | Camarma | Francisco Javier Ramon | Consejo de Seguridad Nuclear (CSN) | Member | Yes |
| Sweden | Johansson | Jan | Swedish Radiation Safety Authority | Member | Yes |
| Switzerland | Leonardi | Anna | National Emergency Operations Centre (NEOC) | Member | Yes |
| Tajikistan | Khamidov | Farkhod | Chemical, Biological, Radiological and Nuclear Safety & Security Agency (National Atomic Energy Authority) | Member | Yes |
| Thailand | Aramrun | Kitkawin | Office of Atoms for Peace, Ministry of Higher Education, Science, Research and Innovation | Member | Yes |
| Turkey | Kilinc | Meltem Nihan | Nuclear Regulatory Authority (NDK) | Member | Yes |
| Ukraine | Chupryna | Svitlana | State Scientific and Technical Centre for Nuclear and Radiation Safety | Member | Yes |
| United Arab Emirates | Al Marzooqi | Mohamed Hassan | Federal Authority for Nuclear Regulation (FANR) | Member | Yes |
| United Kingdom | Ingham | Grant | Office for Nuclear Regulation | Member | Yes |
| United States of America | Waters | Michael | U.S. Nuclear Regulatory Commission | Member | Yes |
| ENISS | Skegg | John | ENISS | Observer | Yes |
| European Commission | Patel | Bharat | European Commission (EC) | Observer | Yes |
| European Commission | Valakis | Stratos | European Commission (EC) | Observer | Yes |
| FAO | Blackburn | Carl | Food and Agriculture Organization (FAO) | Observer | Yes |
| ILO | Niu | Shengli | International Labour Office (ILO) | Observer | Yes |
| ILO | Niu | Shengli | ILO | Observer | No |
| INTERPOL | Peper | Shane | INTERPOL | Observer | Yes |
| INTERPOL | Simm | David | INTERPOL | Observer | Yes |
| INTERPOL | Jugheli | Magda | INTERPOL | Observer | Yes |
| NEA | Martiri | Lucas | Nuclear Energy Agency (NEA) | Observer | Yes |
| NEA | Vardulakis | George | NEA | Observer | Yes |
| WHO | Kenbayeva | Yhanat | WHO | Observer | Yes |
| WNA | Melhem | Sameh | WNA | Observer | Yes |
| WNTI | Kinoshita | Kuniharu | WNTI | Observer | Yes |
