Review of International Developments and Co-operation on Risk-Informed In-Service Inspection (RI-ISI) and Non-destructive Testing (NDT) Qualification in OECD-NEA Member Countries – Responses to the Questionnaire

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In December 2000, the Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) agreed to prepare a state-of-the art report addressing the present situation and regulatory aspects in NEA member countries on risk-based/risk-informed in-service inspections developments and qualification of NDT systems to be used for the inspections. The CSNI gave mandate to the CSNI Working Group on the Integrity of Components and Structures (WGIAGE) to prepare the report.

In order to get a good basis for compiling the report with an overview on the present situation in OECD countries and regulatory aspects on the further developments of RI-ISI and NDT qualification approaches a questionnaire was prepared. This questionnaire was organised in two parts. The first part addressed used risk-based/risk-informed ISI approaches and regulatory aspects on the further developments. The second part addressed used NDT qualification approaches and other measures for getting reliable inspection results as well as regulatory aspects on the further developments of qualification approaches. Tis document contains the member country responses to the questionnaire.