Energia i regulacje · 17/05/2012

An Approach for Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis

The U.S. Nuclear Regulatory Commission (NRC or the Commission) is issuing for public comment four (4) draft regulatory guides (DGs), DG-1285, "An Approach for Probabilistic Risk Assessment in Risk- Informed Decisions on Plant-Specific Changes to the Licensing Basis," (proposed Revision 3 of Regulatory Guide [RG] 1.174); DG-1286, "An Approach for Plant-Specific, Risk-Informed Decisionmaking: Inservice Testing," (proposed Revision 1 of RG 1.175); DG 1287, "An Approach for Plant-Specific, Risk-Informed Decisionmaking: Technical Specifications" (proposed Revision 2 of RG 1.177); and DG-1288, "An Approach for Plant-Specific Risk-Informed Decisionmaking for Inservice Inspection of Piping" (proposed Revision 2 of RG 1.178). These guides describe methods the NRC staff considers acceptable for plant-specific, risk-informed decisionmaking on specific licensee activities.