Document: NUREG-0800
Document ID: 9c6c6c9f-7e30-4d2b-ab07-6d21773f319d
Document Type: srp
Title: INSTRUMENTATION AND CONTROLS - INSPECTIONS, TESTS, ANALYSES,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660624.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.5
CFR Part: 
CFR Title: 

Content:
-C provides an expanded discussion of SRP acceptance criteria for safety system compliance with 10 CFR 50.55a(h). SRP Appendix 7.1-D further discusses SRP acceptance criteria for safety and protection systems using digital computer-based technology. 14.3.5-5 March 2007 SRP Section 14.3, Appendix A, Subsection B.2, provides additional guidance on the expected scope, content, and format of ITAAC. 4. For DC or for COL applications referencing a DC, Tier 1 Design Descriptions and ITAAC design commitments should be based on and consistent with the Tier 2 material. For a COL application not referencing a DC, the ITAAC Design Descriptions (if provided) and ITAAC design commitments should be based on and consistent with the FSAR portion of the application. 5. The applicant may provide design acceptance criteria (DAC) in lieu of detailed system design information. In this case, the DAC should be sufficiently detailed to provide an adequate basis for the Staff to make a final safety determination regarding the design, subject only to satisfactory design implementation and verification of the DAC by the COL applicant or licensee. Implementation of the DAC should be verified as part of the ITAAC performed to demonstrate that the as-built facility conforms to the certified design. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. The relevance of the methodology for selecting SSCs that will be subject to ITAAC and the criteria for establishing the necessary and sufficient ITAAC should be considered from the perspective of each type of system within the scope of DC or COL applications. The accepted methodology should be applied consistently to all systems in the scope. 2. Key functions and performance requirements should be identified as a basis for identifying SSCs that should be within the scope of the ITAAC. 3. To confirm that I&C functions