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
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CFR Title: 

Content:
ACCEPTANCE CRITERIA REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of pressurized-water reactor (PWR) and boiling-water reactor (BWR) reactor systems Secondary - None I. AREAS OF REVIEW This section provides technical review guidance for both evolutionary and passive safety-system designs to ensure that (1) the top-level design information regarding the reactor systems in the design control document (DCD) Tier 2 is appropriately included in Tier 1 and (2) appropriate inspections, tests, analyses, and acceptance criteria (ITAAC) are developed for each top-level system, structure, and component (SSC) within the scope of reactor systems to ensure acceptability of the as-built facility to meet the requirements of Title 10, Code of Federal Regulations (10 CFR), Part 52. The scope of “reactor systems” encompasses the reactor core, fuel, control rods, reactor vessel, reactor coolant system, loose parts monitoring system, and emergency core cooling systems (active and passive) that are significantly related to normal operation, transients, and accidents. 14.3.4-2 March 2007 The Tier 1 design certification material as submitted by the applicant in its DCD includes the top-level design features and performance standards that pertain to the safety of the plant and include descriptive text and supporting figures. The top-level design features and performance standards are those that are most important to safety, including safety-related and defense-in- depth features and functions, and non-safety-related systems that potentially impact safety. The Tier 1 information is derived from Tier 2. (See Appendix A of SRP 14.3 for definitions of Tier 1 and Tier 2). In general, many of the reactor and core cooling systems are classified as safety-related, and therefore, many of the characteristics and features of these systems are judged to have safety significance. This is reflected in a relatively higher level of detail in Tier 1 for these systems than