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:
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 hydraulic system2 • containment cooling system • containment isolation system3 • emergency core cooling systems • emergency diesel engine fuel oil storage and transfer system3 • emergency diesel engine cooling water system • emergency diesel engine starting system 4 Only portions of the system inside containment, up to and including the outermost containment isolation valve, are subject to quality group classification. 5 Includes makeup water systems as described in SRP Section 9.1.3. 3.2.2-10 Draft Revision 3 – August 2015 • emergency diesel engine lubrication system • emergency diesel engine combustion air intake and exhaust system • equipment and floor drainage system2, 3 • feedwater system (up to outermost containment isolation valve or shutoff valve, as applicable) • fuel pool cooling and cleanup system2, 5 • main steam system (up to but not including the turbine) • main steam isolation valve leakage control system3 • nuclear boiler system • process and post-accident sampling systems4 • reactor auxiliary cooling water systems (e.g., essential cooling water and chilled water systems) 2 • reactor core isolation cooling system • reactor recirculation system • reactor water cleanup system • relief valve discharge piping6 • residual heat removal (RHR) system • RHR service water system • standby gas treatment system3 • standby liquid control system • station service water system2 • ultimate heat sink and supporting systems3 • ventilation systems for areas such as control room and engineered safety features rooms3 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)