Nrc's experience with performance indicators in the revised reactor oversight process. Over the last several years, the United States Nuclear Regulatory Commission (NRC) has developed and implemented a revised Reactor Oversight Process (ROP). Major factors in pursuing this initiative included the improved safety performance of US nuclear power plants over the past decade, as well as critical feedback from many stakeholders regarding the NRC's performance assessment process. After conducting a pilot programme at 13 sites in 1999, the NRC recently completed the first year of implementing the ROP at all 103 commercial nuclear power plants. In July 2001, the NRC staff reported to the Commission the results and lessons learned from this experience. The paper provides the key insights the NRC gained relative to the application of performance indicators as part of the NRC's revised ROP.
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