NRC Issues Draft Regulatory Guide on Probabilistic Risk Assessment
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The NRC is reissuing for public comment draft regulatory guide (DG), DG-1285, “An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis.” The guide was initially issued for public comment in 2012. The Commission has decided to incorporate additional information related to evaluation of defense-in-depth philosophy that was not included in the original publication. This revision proposes precise language to ensure that the defense-in-depth philosophy is interpreted and implemented consistently. Comments are due by May 22, 2017.To view the Federal Register Notice, click here.