Document: NUREG-0800
Document ID: 1c54f5f9-dd57-4543-a00d-1597061af2e0
Document Type: srp
Title: SEISMIC CLASSIFICATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1608/ML16084A812.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.1
CFR Part: 
CFR Title: 

Content:
pendix S also requires consideration of surface deformation. The specific areas of review are as follows: 1. This SRP section reviews the seismic classification design criteria and application of that criterion on a sampling basis to those SSCs (including their foundations and supports) that are important to safety and are specified as seismic Category I by the applicant’s safety analysis report (SAR) and designed to withstand, without loss of function, the effects of a SSE. The review also covers identification of SSCs that are not required to remain functional following a seismic event, but whose failure could reduce the functioning of any seismic Category I SSCs to an unacceptable safety level, or could result in incapacitating injury to control room occupants, and therefore must be analyzed and designed to maintain their integrity under seismic loading from the SSE. In addition, the staff reviews the identification of radioactive waste management SSCs that require seismic design considerations as specified in RG 1.143, “Design Guidance for Radioactive Waste Management Systems, Structures, and Components Installed in Light-Water-Cooled Nuclear Power Plants.” 2. This review, which is coordinated with each branch that has primary review responsibility for these plant features, is performed for both construction permit (CP) and operating license (OL) applications, and for both design certification (DC) and combined license (COL) applications. The staff review of seismic Category I SSCs and other SSCs with specific seismic design provisions include the following plant features: structures, dams, ponds, cooling towers, reactor internals, fluid systems important to safety that are identified in RG 1.29, safety-related instrument sensing lines that are identified in RG 1.151, “Instrument Sensing Lines,” ventilation systems, standby diesel generator auxiliary systems, fuel handling systems, and cranes. 3. The staff reviews seismic Category I SSCs that are