Document: NUREG-0800
Document ID: 43123a17-321c-4751-b3ba-9ba5e9b0b364
Document Type: srp
Title: Draft Revision 6 – August 2015
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159A726.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
that are committed to either Revision 2 or 3 of RG 1.97 may voluntarily convert the plant’s entire accident monitoring program to the criteria of Revision 4 of RG 1.97. Conversion means revising the commitment for the plant’s entire accident monitoring program from the current licensing basis (either Revision 2 or 3) to the guidance in Revision 4. The conversion to Revision 4 could include physical changes (e.g., replacing an instrument), licensing changes (e.g., technical specification changes), changes in variable types and associated design and qualification criteria, changes in the function or purpose of the variable, and changes in the range being monitored. This conversion should be supported by a complete analysis of the plant’s accident monitoring program against all of the criteria in Revision 4. The applicant or licensee should document the results of the analysis in a table format that includes for each variable the following: variable name, current type, current function or purpose, current range, proposed type, proposed function or purpose, proposed range, and any criteria that would be changed. For variables for which there is a proposed change in type or purpose, the applicant or licensee should document the rationale for the change. Modifications Using Revision 4 Applicants or licensees of reactors that are committed to either Revision 2 or 3 of RG 1.97 may voluntarily use the criteria of Revision 4 of RG 1.97 to perform modifications that do not involve a conversion. The applicant or licensee should first perform an analysis to determine the complete list of variables and their associated types in accordance with the selection criteria of Revision 4. Without such an analysis, there would not be a means to correlate Revision 4 criteria being applied to the modification of variables that have been previously licensed to the criteria of Revision 2 or 3. The applicant or licensee should document the proposed modifications in a table format that