Document: NUREG-0800
Document ID: 3571c656-1693-466b-a77d-6c05b7eed41e
Document Type: srp
Title: REACTOR SYSTEMS - INSPECTIONS, TESTS, ANALYSES, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660623.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.4
CFR Part: 
CFR Title: 

Content:
NRC staff review. If any other core design is requested for the first cycle, the COL applicant or licensee will be required to submit for staff review those specific fuel, control rod, and core design analyses as described in DCD Tier 2 Chapters 4, 6, and 15. Much of the detailed supporting information in Tier 2 for the nuclear fuel, fuel channel, and control rods, if considered for a change by a COL applicant or licensee that references the certified standard design, would require prior NRC approval. Therefore, for the evolutionary and passive designs, the staff concluded that this information should be designated as Tier 2* information (see Appendix A of SRP Section 14.3 for a definition). However, staff will allow some of the Tier 2* designations to expire after the first full-power operation of the facility when the detailed design has been completed and the core performance characteristics are known from the startup and power-ascension test programs. The NRC bears the final responsibility for designating which material in Tier 2 is Tier 2*. The following issues are identified to ensure comprehensive and consistent treatment of Tier 1 based on the safety significance of the system being reviewed: a. System purpose and functions b. Location/functional arrangement of system c. Key design features of the system d. System operation in various modes e. Seismic and ASME code classifications f. Materials—weld quality and pressure-boundary integrity g. Controls, alarms, and displays h. Logic i. Interlocks j. Class 1E electrical power sources and divisions k. Equipment to be qualified for harsh environments l. Valve qualification and operation m. Interface requirements with other systems n. Numeric performance values (flow rates, capacities, etc.) o. Accuracy and quality of figures p. Active systems that provide defense-in-depth functions designated as non-safety systems 14.3.4-6 March 2007 Appendix C to SRP 14.3 provides “checklists” for the fluid systems as an