Document: NUREG-0800
Document ID: 71224475-ca63-4c09-acc1-c682d58112dd
Document Type: srp
Title: Revision 5 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550082.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
on to monitor variables for accident conditions. Plants that obtained an operating license after June 2006 should reference the guidance of Regulatory Guide 1.97, Revision 4. For plants with operating licenses issued before June 2006, Regulatory Guide 1.97, Revisions 2 and 3, are still effective. Licensees of these plants may, however, convert to the criteria of Revision 4 or use the criteria of Revision 4 when performing modifications that do not involve a conversion. The guidance contained in Regulatory Position 1 of Regulatory Guide 1.97, Revision 4, should be followed in these cases. 3. Purpose The purpose of this BTP is to provide additional guidance for NRC reviewers to verify that the previously cited regulatory bases are met by an applicant/licensee's submittal. This BTP's objectives are: • To clarify the staff position on accident monitoring instrumentation and • Identify alternatives acceptable to the staff for satisfying the guidelines identified in Regulatory Guide 1.97. BTP 7-10-3 Revision 5 - March 2007 B. BRANCH TECHNICAL POSITION 1. Introduction Applicant/licensees have provided design submittals to the staff containing interpretations of guidelines identified in Regulatory Guide 1.97. In some cases, applicant/licensees have requested relief from selected guidelines. When the applicant/licensee provided adequate justification, the staff has accepted alternatives to implementing specific provisions of Revisions 2 and 3 of Regulatory Guide 1.97. The staff documented the basis for this acceptance in various safety evaluation reports (SERs). Staff positions and clarifications applicable to various classes of plant designs emerged from these evaluations. These positions include identification of specific designs acceptable to the staff for instrumentation to assess plant and environs conditions during and following an accident. 2. Information to be Reviewed The information to be reviewed for accident monitoring instrumentation is described in Standard