Document: NUREG-0800
Document ID: 8f691af5-cf3a-46e0-92cd-9421a49395c9
Document Type: srp
Title: Revision 2 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0708/ML070800127.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3
CFR Part: 
CFR Title: 

Content:
inspection criteria. Such interpretations would be contrary to the intent of the code and inconsistent with BTP 3-1-2 Revision 2 - March 2007 requirements of the NRC Codes and Standards rule, Section 50.55a of 10 CFR Part 50. Furthermore, the applicability of the following NRC Regulatory Guides, Standard Review Plan section, and Regulations, as they relate to ASME Section III, Class 2 components, is not always clearly identified or implemented in case applications wherever "D + QA" classification is adopted: 1. SRP Section 3.9.3, "ASME Code Class 1, 2, and 3 Components, Component Supports, and Core Support Structures." 2. Regulatory Guide 1.26, "Quality Group Classifications and Standards." 3. 10 CFR 50.55a, "Codes and Standards for Nuclear Power Plants." 4. 10 CFR Part 50, Appendix B, "Quality Assurance Criteria for Nuclear Power Plants." In view of the foregoing, we find it necessary to clarify the quality group classification criteria for main steam components for BWR plants. B. BRANCH TECHNICAL POSITION The main steam line components of BWR plants should conform to the criteria listed in items 1 through 5 of the attached Table A-1. BWRs that do not include a main steam isolation valve leakage control system or main steam line shutoff valves and that credit fission product hold-up and retention in main steam piping and/or the condenser to address main steam isolation valve leakage in analyses of accident radiological consequences, should also conform to the criteria specified in item 6 of Table A-1. Figure A-1 illustrates acceptable quality group and seismic classifications for BWR main steam piping and components. C. REFERENCES 1. 10 CFR 50.55a, "Codes and Standards." 2. 10 CFR Part 50, Appendix B, "Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants." 3. Regulatory Guide 1.26, "Quality Group Classification and Standards for Water-, Steam-, and Radioactive-Waste-Containing Components of Nuclear Power Plants." 4. Branch Technical