This project, part of the Instrument for Nuclear Safety Cooperation (INSC), has effectively enhanced the capabilities in China for the identification and treatment of people who may have been over-exposed to radiation in a radiological or nuclear emergency. The project has been implemented by IRSN (France) in the period April 2015 – February 2017 in close cooperation with the Nuclear Industry General Hospital (NIGH) of Suzhou as the main Chinese partner. The overall project objective has been to transfer European knowledge and experience with the aim to bringing the Chinese capabilities more in accordance with best international standards and practices. The project aimed in particular at training medical experts of the nuclear medical centre of the NIGH on different techniques used in case of the need for medical management of a radiological or nuclear accident. 14 highly specialised and experienced IRSN experts gave a fully integrated 3 weeks' training course covering the following topics: • General information on radiological accidents (introductive information, detailed information focused on Hiroshima, Nagasaki, Chernobyl, and Fukushima events); • Basic and specialized knowledge on radiobiology, radiopathology, radiotoxicology, dosimetry (internal, external, biological), and epidemiology; • Practical information (including academic knowledge, case reports, and drills) on how to deal with a radiological accident: international regulations governing radiological protection, organization of the response, triage of casualties, iodine prophylaxis, medical management (diagnosis and treatment) of overexposed victims (irradiated, contaminated), and assessment of psychological consequences. The project activities also included intensive on the job training for a duration of five weeks at IRSN laboratories in France for six experts from different departments of the NIGH (Oncology, Gastroenterology, Nuclear Emergency Centre). The topics covered during the training were internal and external dosimetry, biological dosimetry, radiopathology and mediacl coutermeasures, and radiotoxicology and decorporation.