Committee 3 addresses protection of persons and unborn children when ionising radiation is used in medical diagnosis, therapy, and biomedical research, as well as protection in veterinary medicine.

Front Row: Noramaliza Noor, John Damilakis, Geraldine Pina, Isabelle Thierry-Chef (Secretary), Jenia Vassileva, Buthaina Al Ameri (Assisted with C3 meeting at ICRP 2025)
Second Row: Geraldine O'Reilly, Loredana Marcu, Mika Kortesniemi, David Sutton (Chair), Andrea Magistrelli (Vice-Chair), Weihai Zhuo
Back Row: Ferid Shannoun (WHO Representative), Jin Chul Paeng, Lorenzo Nicola Mazzoni, Ivan Williams, Juan Camilo Ocampo Ramos, Yusuke Inoue
| David Sutton (Chair), University of Dundee, United Kingdom | ||
| Andrea Magistrelli (Vice-Chair), Children's Hospital Bambino Gesu' IRCCS, Italy | ||
| Isabelle Thierry-Chef (Secretary), Bacelona Institute for Global Health (ISGlobal), Spain | ||
| Geraldine O'Reilly (Member), St.James's Hospital, Ireland | ||
| Noramaliza Binti Mohd Noor (Member), Medical Physics Unit, Department of Radiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia | ||
| John Damilakis (Member), University of Crete, School of Medicine, Greece | ||
| Yusuke Inoue (Member), Department of Radiological Sciences,Faculty of Health Sciences, Komazawa University, Japan | ||
| Mika Kortesniemi (Member), HUS Diagnostic Center, Helsinki University Hospital, Finland | ||
| M. Mahesh (Member), Johns Hopkins Medical Institution, USA | ||
| Loredana Gabriela Marcu (Member), University of Oradea, Romania | ||
| Lorenzo Nicola Mazzoni (Member), AUSL TC, Italy | ||
| Juan Camilo Ocampo Ramos (Member), University of Texas MD Anderson Cancer Center, USA | ||
| Jin Chul Paeng (Member), Seoul National University Hospital, Korea | ||
| Geraldine Pina (Member), ASNR, France | ||
| William Small (Member), USA | ||
| Jenia Vassileva (Member), Bulgaria | ||
| Ivan Williams (Member), Australian Radiation Protection and Nuclear Safety Agency, Australia | ||
| Weihai Zhuo (Member), Institute of Radiation Medicine, Fudan University, China | ||
| Sören Mattsson (Member emeritus), Skåne University Hospital Malmö and Lund University, Sweden | ||
| Madan M. Rehani (Member emeritus), Massachusetts General Hospital & Harvard Medical School, USA | ||
| Marvin Rosenstein (Member emeritus), USA | ||
| Anja Almen (Representative), Heads of the European Radiological Protection Competent Authorities (HERCA), | ||
| Guy Frija (Representative), International Society of Radiology (ISR), France | ||
| Ola Holmberg (Representative), International Atomic Energy Agency (IAEA), Austria | ||
| Weibo Li (Representative), European Radiation Dosimetry Group (EURADOS), | ||
| Napapong Pongnapang (Representative), International Society of Radiographers & Radiological Technologists (ISRRT), | ||
| Madan Rehani (Representative), International Organization for Medical Physics (IOMP), | ||
| Ferid Shannoun (Representative), World Health Organisation (WHO), Switzerland |