Document: NUREG-0800
Document ID: ba51de63-39c0-4396-acd5-87521e5e5c74
Document Type: srp
Title: RELIABILITY ASSURANCE PROGRAM (RAP)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190018.pdf
Revision Date: 2023-06
Chapter: 17
Section ID: 17.4
CFR Part: 
CFR Title: 

Content:
hat the reliability for SSCs within the scope of the RAP is maintained during plant operations. Reliability assurance activities for this stage are integrated into existing programs (e.g., maintenance rule, surveillance testing, inservice inspection, inservice testing, and QA). Individual component reliability may change throughout the course of plant life due to a number of factors including aging and changes in suppliers and technology. Changes in individual component reliability values are acceptable as long as overall plant safety performance is maintained. The RAP for the design stage may be implemented in several phases. During the first phase, SSCs are identified for inclusion in the program using probabilistic/PRA, deterministic, or other methods. The second phase is the site-specific phase, which introduces the plant’s site- specific design information to the process. At this phase, the RAP is modified or appended based on considerations specific to the site. The RAP is verified via an audit conducted by the NRC staff in accordance with the guidance in this SRP and the NRC safety evaluation review process. An applicant for a design certification or a COL that does not reference a certified design is also responsible for proposing a non-system based Tier 1 inspection, test, analysis, and acceptance criteria (ITAAC) requirement for the RAP design stage. The ITAAC description is verified by the NRC safety evaluation review process. The COL holder is responsible for completing the ITAAC. Satisfactory completion of the ITAAC is verified by Inspection Manual Chapter (IMC) 2503, “Construction Inspection Program: Inspections, Tests, Analyses, and Acceptance Criteria.” The specific areas of review are as follows: 1. The QA staff reviews and audits the quality controls for developing and implementing the RAP (organization, design control, procedures and instructions, records, corrective action, and audit plans). 2. The QA staff reviews the RAP scope and