Document: NUREG-0800
Document ID: 8238d583-b5fc-4a78-9cf3-4407f130bbbd
Document Type: srp
Title: SYSTEM QUALITY GROUP CLASSIFICATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190003.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.2
CFR Part: 
CFR Title: 

Content:
ontrol Room and Engineered Safety Features Rooms6 1 For some plants this system may be non-safety-related, providing it is quality group classified consistent with the positions of RG 1.26. 2 Portions of the system that perform a safety-related function. 3 Portions of the system to outermost containment isolation valve. 4 Includes makeup water systems as described in SRP Section 9.1.3. 5 Refers to the relief valves providing RCPB overpressure protection. 6 See Appendix A for supplemental classification guidance. 3.2.2-8 Revision 2 - March 2007 Clarification of the quality group classification provided in RG 1.26 and applicable to those portions of BWR main steam and feedwater systems (other than the reactor coolant pressure boundary) on the turbine side of the containment isolation valves, is provided in Branch Technical Position (BTP) 3-1 and BTP 3-2. Additional guidance on the quality group classification of systems and components important to safety for typical plant designs is provided in Appendix A attached to this SRP section. Appendix A identifies quality group classifications and related references supplemental to the guidance of RG 1.26 for the classification of system components. Table 3.2.2-1 provides a summary of the construction Codes and Standards for components of water-cooled nuclear power plants and is based on the NRC quality group classification system in RG 1.26. Appendix A identifies additional guidance regarding the construction of certain systems and components. In the event an applicant intends to take exception to RG 1.26 it should be supported with adequate justification for the proposed quality group classification or an analysis to establish an acceptable basis for the proposed quality group classification. Staff comments may also be prepared requesting clarification, in order to ensure a clear understanding of the quality group classifications assigned to a system by the applicant. Exceptions and alternatives to the specified quality