[3F05-06] Optimization of Nuclear Regulatory Inspection

[3F05] Research on Efficient Operation of Nuclear Regulatory Inspection System and Improvement of Inspectors' Competence

(1)Results of Hearing and Interview Surveys

*Junji Eto¹, Hiroki Sugino¹, Masaki Onodera¹, Shono Fujiyama¹, Kiyoshi Nakajima¹, Nobuaki Yoshizawa¹, Kiyoteru Suzuki¹ (1. Mitsubishi Research Institute, Inc.)

Keywords:nuclear regulatory inspection, reactor oversight process, inspector, risk-informed, performance-based

Regarding the nuclear regulatory inspection system that came into effect in April 2020, the authors conducted a questionnaire and interview surveys with NRA staff involved in inspection work for the purpose of improving inspection capability and efficient operation of inspections. As a result of the investigation, it became clear that the inspector's conceptual understanding of nuclear regulatory inspection has permeated. In particular, it was confirmed that the understanding of the four concepts of nuclear regulatory inspection (performance-based, risk-informed, free access and corrective action program) is widely spread to inspectors. Based on the results of this survey, the authors recommended that efforts that contribute to improving the competence of individual inspectors in practice should be strengthened as a future task.