Improvement of NRA's inspection by IRRS recommendation and innovative integrated new maintenance system for NPPs

The 2011 off the Pacific coast of Tohoku Pacific Earthquake and the Tsunami gave the serious damage to the Fukushima-Daiichi Nuclear Power Plants (NPPs). The lessons from the accidents, IAEA's Integrated Regulatory Review Service (ERRS) team conducted review for NRA. The mission provided recommendations and suggestions for improvements in most of the areas covered by the review. include: 1) The NRA should work to attract competent and experienced staff, and enhance staff skills relevant to nuclear and radiation safety through education, training, research and enhanced international cooperation. 2) Japanese authorities should amend relevant legislation to allow NRA to perform more effective inspections of nuclear and radiation facilities. 3) The NRA and all entities it regulates should continue to strengthen the promotion of safety culture, including by fostering a questioning attitude. Based on the ERRS recommendations, NRA should improve the nuclear safety regulation through the innovation of regulatory rules and performance inspection will be introduced like NRC in USA. Innovative Integrated New Maintenance System for NPPs will be needed between licensees and regularly. (author)