Document: NRC Regulatory Guide
Document ID: 96ecfd93-e64a-4f35-93fe-d3b95daac61d
Document Type: regulatory_guide
Title: Monitoring the Effectiveness of Maintenance at Nuclear Power Plants + HISTORY –HISTORY 06/2018 – DG-1336 , Proposed Revision 4 09/2011 – DG-1278 , Proposed Revision 3 08/1996 – DG-1051 , Proposed Revision 2 06/1994 – DG-1031, Proposed Revision 1 11/1992 – DG-1020, Proposed Revision 0 (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1812/ML18129A080.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.160
CFR Part: 
CFR Title: 

Content:
q.). These information collections were approved by the Office of Management and Budget (OMB), under control numbers 3150-0011 and 3150-0151. Send comments regarding this information collection to the Information Services Branch, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by e-mail to Infocollects.Resource@nrc.gov, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202 (3150-0011, 3150-0151), Office of Management and Budget, Washington, DC 20503. Public Protection Notification The NRC may not conduct or sponsor, and a person is not required to respond to, a request for information or an information collection requirement unless the requesting document displays a currently valid OMB control number. DG-1336, Page 3 B. DISCUSSION Reason for Revision This revision of the guide (Revision 4) addresses new issues identified since the guide was previously issued and updates the guidance by endorsing Revision 4F of NUMARC 93-01, “Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants” (Ref. 4). NUMARC 93-01, Revision 4F addresses the application of the Maintenance Rule (10 CFR 50.65) to the use of diverse and flexible coping strategies (FLEX) support guidelines (FSGs) in plant emergency operating procedures (EOPs). Specifically, NUMARC 93-01, Revision 4F, includes new language in Section 8.2.1.3, “NonSafety-Related SSC that are used in the Emergency Operating Procedures,” to address the requirements in 10 CFR 50.65(b)(2)(i). Definition of Maintenance As discussed in the Federal Register (FR) notice, “Final Commission Policy Statement on Maintenance at Nuclear Power Plants,” dated March 23, 1988 (Ref. 5), maintenance is defined as the aggregate of those functions required to preserve or restore safety, reliability, and availability of plant SSCs. Maintenance includes not only activities traditionally associated with identifying and correcting actual or potential degraded