Document: NUREG-0800
Document ID: fde45fa1-e4ca-4005-b5f6-d1bbefc60c73
Document Type: srp
Title: RELIABILITY ASSURANCE PROGRAM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070754.pdf
Revision Date: 2023-06
Chapter: 17
Section ID: 17.4
CFR Part: 
CFR Title: 

Content:
ations, maintenance, and surveillance activities. This process should be based on probabilistic or deterministic considerations, as well as other possible sources of information (e.g., standard design certification PRA, advice from an expert panel). The D-RAP should specify the following: (1) A process for identifying and prioritizing SSCs that is based on risk significance; DRAFT Rev. 0 - April 1996 17.4-4 (2) The list of SSCs designated as risk significant for the COL; and (3) A process for determining dominant failure modes that is based on industry experience, analytical models, and applicable requirements. d. The description of the manner in which the remainder of the D-RAP will be implemented. The COL applicant's D-RAP will be reviewed and approved by the NRC staff prior to the time the COL is issued. 3. COL Holder D-RAP - Once the site-specific D-RAP has been established and the risk- significant SSCs identified, the staff will verify that procurement, fabrication, construction, and preoperational tests have been conducted in accordance with the D-RAP using the inspections, tests, analyses, and acceptance criteria (ITAAC) process. The staff's verification of D-RAP implementation by a COL holder will include the following: a. Verification that the D-RAP evaluated and approved during the construction stage is being/was implemented during procurement, fabrication, construction, and preoperational testing. b. Evaluation of modifications to the design of risk-significant SSCs during the construction stage, thereby ensuring that new information is factored into the PRA or other sources to assure risk significance evaluations and prioritizations are maintained. c. Evaluation of revisions to the plant- or site-specific PRA; verification that the list of SSCs designated as risk significant for the COL holder during the construction stage is appropriately revised; and verification that dominant failure modes consider any changes to site-specific elements, any new