Abstract
Task Force on the Inspection System was established in the Nuclear and Industrial Safety Subcommittee of the Advisory Committee for Natural Resources and Energy in February 2002, and the study started. In order to make the inspection effective, communication between the regulatory body and the licensees is very important. Thus the Research Section on Optimization of Nuclear Safety Regulation was established at JSME in 2005 to support the task force. The last year, the research section visited US-NRC Region III, Davis Besse NPS and Quad Cities NPS, and compared the US and Japanese regulatory systems. The actual situation of the periodic licensee's check in Japan was investigated. These results are useful for further improvement of inspection system in Japan.
