Document: NUREG-0800
Document ID: 22884f18-189e-46a8-81b2-45db11edf145
Document Type: srp
Title: SYSTEM QUALITY GROUP CLASSIFICATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1422/ML14227A641.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.2
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rance program that is in compliance with 10 CFR Part 50, Appendix B, “Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants.” For PWR plants licensed before the revision date of this SRP section and whose PORVs were not constructed as safety-grade components, these components should be addressed in accordance with the positions specified in GL 90-06, Enclosure A, Section 3.1. h. RG 1.143, “Design Guidance for Radioactive Waste Management Systems, Structures, and Components Installed in Light-Water-Cooled Nuclear Power Plants,” describes a method acceptable for complying with regulations regarding radwaste management systems, including guidance for classification and quality assurance measures. Position C.1.1 and Table 1 of the RG describe codes and industry standards applicable to the design and fabrication of radwaste management systems. In addition, the RG describes positions with regard to the design and fabrication of these systems that are supplemental to those established by the codes and standards cited. RG 1.143 does not explicitly specify classifications for radwaste management system components in terms of the quality groups (A-D) described in RG 1.26. i. RG 1.151, “Instrument Sensing Lines,” describes an acceptable method for the design and installation of safety-related instrument sensing lines, including the application of another standard in addition to the ASME Code. The RG describes an acceptable method for classifying instrument sensing lines by providing classification guidance for instrument sensing lines in terms of the ASME BPV Code, Section III code classes, which correspond to RG 1.26 Quality Groups. j. SRP Section 9.2.5 provides review procedures and findings that verify that the ultimate heat sink and its supporting systems meet Quality Group C criteria. RG 1.72, “Spray Pond Piping Made from Fiberglass- Reinforced Thermosetting Resin,” describes an acceptable method for the design, fabrication, and