Document: NUREG-0800
Document ID: 988a555f-fdfa-4452-829d-c06654bfbba5
Document Type: srp
Title: Initial Plant Test Program - Design Certification and New License Applicants
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660618.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.2
CFR Part: 
CFR Title: 

Content:
ures of the facility should be considered carefully for inclusion in Tier 1. The SRP Section 14.3 subsections provide specific review area guidance. The general areas of review are as follow: 1. Staff reviews the ITAAC and the supporting information in Section 14.3 of the Tier 2 portion of the DCD submitted by the applicant for a DC. It is necessary to develop the Tier 1 design descriptions before the ITAAC can be prepared for NRC staff review. An explanation of the terminology used in this SRP and how the Tier 1 information, which includes design descriptions and ITAAC, was developed for certification of the evolutionary designs is provided in Appendix A to this SRP. 2. Applicants may submit Tier 1 design descriptions based on the structures and systems of their designs rather than on the format of the DCD Tier 2 and the SRP. This may result in overlapping NRC review responsibilities. Also, some organizations have responsibilities for many systems. For example, consistent treatment of alarms, displays, and controls is the responsibility of one reviewer and functionality of safety-related motor operated valves (MOVs) maybe the responsibility of another; therefore, the review process may be facilitated by task groups of reviewers from several organizations as for the reviews of the evolutionary designs. 3. Staff responsible for the review of the probabilistic risk assessment (PRA) reviews Tier 1 to ensure appropriate treatment of important insights and assumptions from the 1An ESP application proposing complete and integrated emergency plans for review and approval should include ITAAC. An ESP application proposing major features of an emergency plan for review and approval may include proposed ITAAC. 14.3-3 March 2007 probabilistic risk assessment. Reviewers should use the guidance in the SRP Chapter 19 to determine the appropriate top-level design features for inclusion in Tier 1 and provide inputs to the responsible staff. Important integrated plant safety