Document: NRC Regulatory Guide
Document ID: 5810150e-ee20-4cd1-b72f-6e918a603f73
Document Type: regulatory_guide
Title: Applications for Nuclear Power Plants (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1523/ML15233A056.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.206
CFR Part: 
CFR Title: 

Content:
ndicate acceptance of R-COL responses to the NRC’s RAIs associated with standard content. This approach involves identifying the R-COL application of RAI responses submitted as either “Expected to be Standard for the S-COL Applications” or “Plant Specific,” which are then summarized in a table. An endorsement letter from an S-COL applicant confirms the applicability of standard content RAI responses by including an evaluation of the R-COL RAI responses. The evaluation may include the following: a. a table listing R-COL RAIs, including RAI identification numbers; b. a copy of the R-COL determination of the RAI as to whether the RAI was standard or site specific; and c. a determination as to whether the RAIs designated as standard are endorsed by the S-COL applicant. The S-COL application endorsement letters are also referred to as “me-too” letters and reflect a commitment by the S-COL applicant to make standard changes identical to the R-COL applicant’s changes. If an S-COL applicant’s response differs from the R-COL applicant’s standard response, the S-COL applicant typically notifies the NRC. Additional S-COL application endorsement letters may be submitted later as necessary. Although this practice was initially limited to referencing R-COL standard content, the practice has now evolved to include referencing RAI responses of S-COL applications. For example, the WLS applicant referenced a series of RAI response letters from the LNP S-COL applicant in a letter titled “Voluntary Submittal of Exemption Request and Design Change Description for Departure from AP1000 DCD Revision 19 to Address Main Control Room Dose Analysis,” February 12, 2016 (Ref. 73), requesting an exemption associated with a departure for the WLS COLA. Enclosure 1 of that letter lists the NRC’s number designation for the LNP RAI and the corresponding response to the LNP RAI. Enclosure 1 states that the NRC had reviewed the LNP RAI response letters and found them