Document: NUREG-0800
Document ID: 62485d6f-6b2a-4360-acb5-f874d2adc406
Document Type: srp
Title: PIPING SYSTEMS AND COMPONENTS - INSPECTIONS, TESTS,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1808/ML18088A069.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.3
CFR Part: 
CFR Title: 

Content:
l Tier 1 information is consistent with Tier 2 information. Figures and diagrams should be reviewed to ensure that they accurately depict the functional arrangement and performance of the systems, and all important SSCs are treated appropriately. Reviewers should use the review checklists in SRP Section 14.3, Appendix C, as aids in treating issues consistently and comprehensively. 3. Ensure that Tier 1 clearly delineates the important aspects of piping design, specifies its scope for the standard design, and establishes appropriate acceptance criteria. ASME BPV Code classification, safety classification, and seismic classification of the piping systems should be indicated clearly on the figures or described in the design descriptions and consistent with DCD Tier 2. Ensure that system boundaries and interfaces are indicated clearly in Tier 1 and that the figures are in accordance with the legends. Figure legends should clearly identify the information that is in Tier 1 and the information that is not in Tier 1. 4. Provide appropriate guidance to other reviewers for consistent treatment of piping design issues in Tier 1, especially applicable standard ITAAC and piping issues for figures. 5. Ensure that standard ITAAC entries in SRP Section 14.3, Appendix D, for piping systems and components are included where appropriate in the standard design systems. Ensure that plant-specific ITAAC are included where applicable. Ensure adequate supporting information is in Tier 2, generally Chapter 3, and the initial test program in Section 14.2. 14.3.3−21 Draft Revision 1 – September 2018 6. Ensure that design features resulting from the resolutions of selected policy and technical issues are addressed adequately in Tier 1 based on safety significance. Ensure that applicable NRC requirements and the appropriate NRC guidance, bases, and resolutions for these items are documented clearly in the SER. 7. Ensure that any Tier 2* information is clearly designated in Tier 2, and