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
CFR Part: 
CFR Title: 

Content:
o Quality Group Classification • auxiliary feedwater system • boron thermal regeneration system1, 2 • boron recycle system1, 2 • chemical and volume control system • combustible gas control system1, 3 1 For some plants this system may be nonsafety-related, providing it is quality group classified consistent with the positions of RG 1.26. 2 Only portions of the system that perform a safety-related function are subject to quality group classification. 3 See Appendix A for supplemental classification guidance. 3.2.2-9 Draft Revision 3 – August 2015 • compressed air system1, 2, 3 • condensate storage system1 • containment cooling system • containment isolation system3 • containment purge system • containment spray system • emergency core cooling system • emergency diesel engine fuel oil storage and transfer system3 • emergency diesel engine cooling water system • emergency diesel engine starting system • emergency diesel engine lubrication system • emergency diesel engine combustion air intake and exhaust system • equipment and floor drainage system2, 3 • feedwater system4 • main steam system4 • pressurizer power-operated relief valves (PORVs) (including associated components and block valves) 3 • process and post-accident sampling systems4 • reactor auxiliary cooling water systems (e.g., component cooling water and essential chilled water systems) 2 • reactor coolant system • refueling water storage system2 • residual heat removal system • spent fuel pool cooling and cleanup system2, 5 • station service water system2 • steam generator blowdown system4 • ultimate heat sink and supporting systems3 • ventilation systems for areas such as control room and engineered safety features rooms3 Boiling-Water Reactor Fluid Systems Subject to Quality Group Classification • combustible gas control system3 • compressed air system1, 2, 3 • condensate storage system2 • control rod drive