Nuclear Regulatory Commission May 21, 2012 – Federal Register Recent Federal Regulation Documents

The U.S. Nuclear Regulatory Commission (NRC or Commission) is issuing a revision to Regulatory Guide (RG) 1.160, ``Monitoring the Effectiveness of Maintenance at Nuclear Power Plants.'' This guide endorses Revision 4A to Nuclear Management and Resources Council (NUMARC) 93-01, ``Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants,'' which provides methods that are acceptable to the NRC staff for complying with the provisions of Title 10 of the Code of Federal Regulations (10 CFR) 50.65, ``Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants,'' Part 50, ``Domestic Licensing of Production and Utilization Facilities.'' Revision 4 of NUMARC 93-01 provides enhanced clarity regarding scoping non-safety related Systems, Structures and Components based on their use in Emergency Operating Procedures, gives guidance on consideration of fire risk in (a)(4) risk assessments, and provides enhanced consistency in unavailability monitoring between the Maintenance Rule and Reactor Oversight process by providing clarification to the definition for monitoring of short term unavailability resulting from periodic system or equipment realignments.