Abstract
In Japan, the lessons learned from Fukushima Dai-ichi nuclear accident have been reflecting and implementing to the nuclear facilities in order to re-start their operations. However, when we review the Fukushima nuclear accident from the viewpoint of the quality assurance, it is regrettable that this nuclear quality assurance could not contribute to prevent from Fukushima nuclear accident. The nuclear quality assurance up to now was mainly focused to the quality of the products and maintaining and operating activities of the nuclear facilities. Essentially, the quality assurance is a scientific approach to achieve the objectives and consists of identifying quality problems, providing their solutions and corrective actions to prevent from recurrence. It should be also effective to achieve nuclear safety. Fukushima Dai-ichi nuclear accident taught us that nuclear safety is achieved by the efforts of all participants of the nuclear business. Nuclear safety starts from siting and terminates decommissioning including emergency preparedness. It is important to reconsider wide-ranging and more in-depth management systems to contribute safety. It should be a kind of social system involving all participants.
