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Multiple/Repetitive Degraded Cornerstone ColumnNRC uses its Reactor Oversight Process (ROP) to measure plant performance within the three broad areas of (1) reactor safety, (2) radiation safety, and (3) security. Within these areas, NRC looks at seven cornerstones: (1) Initiating Events, (2) Mitigating Systems, (3) Barrier Integrity, (4) Emergency Preparedness, (5) Occupational Radiation Safety, (6) Public Radiation Safety, and (7) Physical Protection. If, from an assessment of inspection findings and performance indicators
for a nuclear plant, NRC identifies repetitive degradation in a single
cornerstone, NRC documents this plant degradation on an ROP matrix (see
Inspection
Manual Chapter 0305 |
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