Document: NUREG-0800
Document ID: 73bfb001-838f-4b48-a387-d3ef2ee987b5
Document Type: srp
Title: SEISMIC CLASSIFICATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340616.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.1
CFR Part: 
CFR Title: 

Content:
gure B-1 attached to Appendix B of SRP Section 3.2.2. The information -in the SAR identifying seismic Category I structures, systems, and components is reviewed for completeness and to assure there is sufficient detail to permit identification of specific items. This may include a review of the SAR text, tables, plot plans, general arrangement drawings, structural drawings, and piping and instrumentation diagrams, as appropriate. Where portions of a system are classified seismic Category I, the boundary limits of that portion of the system designed to Category I requirements is reviewed on the piping and instrumentation diagrams. For fluid systems which are partially seismic Category I, the Category I portion of the system should extend to the first seismic restraint beyond the isolation valves which isolate that part which is seismic Category I from the non-seismic portion of the system. In addition, where portions of a structure are classified seismic Category I, those portions of the building foundations and supports designed to Category I requirements are identified on the plant arrangement drawings. The interfaces between components and associated support structures designed to seismic Category I requirements are then checked to assure compatibility. Structures, systems, and components that are classified seismic Category I are also reviewed to assure that these plant features are within the scope of an applicant's Quality Assurance Program. This Quality Assurance Program should be in compliance with the pertinent Quality Assurance requirements of 10 CFR Part 50, Appendix B. Regulatory Guide 1.29 is used for identifying those plant features important to safety that are within the scope of this Appendix 8 Quality Assurance Program. If there are items designated seismic Category I that are not identified as within the scope of the Appendix B Quality Assurance Program this information is transmitted to the Quality Assurance Branch for resolution of the issue. The