Document: NUREG-0800
Document ID: 39eaebb5-884c-4731-895a-8df4686b7293
Document Type: srp
Title: REGULATORY TREATMENT OF NONSAFETY SYSTEMS FOR PASSIVE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1403/ML14035A149.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.3
CFR Part: 
CFR Title: 

Content:
, internal floods) and standards for assuring that SSC functions can be achieved expeditiously. 5. The regulatory treatment proposed for SSCs in the scope of RTNSS program. COL Action Items and Design Certification Requirements and Restrictions For a DC application, the review will also address COL action items and requirements and restrictions (e.g., interface requirements and site parameters). For a COL application referencing a DC, a COL applicant must address COL action items (referred to as COL license information in certain DCs) included in the referenced DC. Additionally, a COL applicant must address requirements and restrictions (e.g., interface requirements and site parameters) included in the referenced DC. Review Interfaces The comprehensive baseline PRA and focused PRA sensitivity studies that are needed to determine SSCs relied on under power-operating and shutdown conditions to meet the Commission goals are described in Chapter 19 of the application. Likewise, the severe accident evaluation used to identify SSC functions needed to meet the containment performance goal, including containment bypass, during severe accidents is also described in Chapter 19 of the application. The staff reviews these topics using SRP 19.0 and documents its review in Chapter 19 of the Final Safety Evaluation Report. The technical organizations responsible for the review of the functional capabilities of SSCs use the general guidance in this SRP to (1) verify or identify SSCs that require regulatory treatment, (2) develop specific review guidance for SSC functions in their review domain and (3) verify that the level of regulatory treatment specified for SSC functions in their review domain is commensurate with the R/A missions for those SSCs. Reviewers in these organizations will 19.3-5 Revision 0 – June 2014 interact with staff responsible for review of the applicant’s PRA to gain an understanding of the R/A mission of SSCs within their review scope as characterized in