The present report deals with the concept of defence in depth in nuclear and radiation safety, discussing its objectives, strategy, implementation and future development. The report is intended for use by governmental authorities and by the nuclear industry and its supporting organizations. It is designed to stimulate discussion and to promote practical action at all levels to enhance safety.
Contents: 1. Introduction; 2. The approach to defence in depth; 3. Implementation of defence in depth; 4. Enhancement of defence in depth for plants currently operating; 5. Development of defence in depth for future nuclear power plants.Russian edition in preparation.