Monitoring the Effectiveness of Maintenance at Nuclear Power Plants

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The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment draft regulatory guide (DG), DG-1336, "Monitoring the Effectiveness of Maintenance at Nuclear Power Plants." This proposed guide, Revision 4, has been revised to addresses new issues identified since Revision 3 of RG 1.160 was issued and endorses with clarification NUMARC 93-01, "Industry Guidelines for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants," Revision 4F. The proposed revision describes methods that are acceptable to the NRC staff for compliance with the requirements for monitoring the effectiveness of maintenance at nuclear power plants.