Document: NRC Regulatory Guide
Document ID: b143ccef-ed08-482d-bc4b-b4e012328090
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:
FSAR that are identified after the freeze point would not be implemented unless they are proposed as departures from the certified design. The DC applicant would identify such potential departures to COL applicants or COL licensees that could, if they so choose, identify them as requested departures or exemptions in a COLA, an update to a COLA, or a periodic report submitted by a COL applicant as applicable. The treatment of these proposed changes by the COL applicant could depend on the status of the DC application relative to the freeze point for the COLA. Until such changes are incorporated into an amendment to a DC, they would need to be handled as departures or exemptions, assuming that they meet the threshold in the applicable change control process. COL applicants may identify such departures or exemptions as standard content associated with an R-COL under the design-centered review approach described in RIS-2006-06 and discussed in Section C.2.7. To facilitate the NRC’s review for S-COL applications, changes to the licensing basis which should not be deferred because of their role in staff’s review of reasonable assurance of adequate safety are submitted to the NRC for review during the review and certification process. DG-1325, Page-104 For DCs, defining a freeze point has more significant and longer term impacts than that of a COLA. Under 10 CFR 52.63(a), later revisions that reflect additional design changes require rulemaking that requires a lengthier and more complex process than that of licensing departures associated with COLs under 10 CFR 52.98(e) and 10 CFR 50.91, “Notice for Public Comment; State Consultation.” Revisions to the DC would ultimately affect all COLs that reference the DC and those COLAs that reference the DC or COL that are still in the preapplication phase. Under 10 CFR 52.57, an application for DC renewal could alternatively include design changes after the freeze point; however, the time between certification of the DC and