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:
10 CFR 52.63(b) describes processes for a COL applicant to request or to make changes to DC information. In addition, the DCR appendices to 10 CFR Part 52 are similarly structured, and Section VIII of the appendices addresses the information change processes. Although the DCRs are similarly structured, each DCR requires different technical information, under the same overall process, to be subject to review and approval by the NRC staff before changes are made. The DCRs establish a two-tier hierarchy of design-related information referred to as Tier 1 and Tier 2 information which includes certain information that is further designated as Tier 2*. The COL applicant intending to change design information should either request an exemption or propose a departure depending on whether the information is defined as Tier 1, Tier 2, or Tier 2* or, alternatively, pertains to operational requirements. Further, as required by Section IV of the DCRs, the COL applicant should include, as part of the application, a plant-specific DCD consisting of the information in the generic DCD as modified and supplemented by the plant-specific departures and exemptions made under DG-1325, Page-95 Section-VIII of the DCRs. Table 5 summarizes the process for COL applicants proposing to change information contained in the DC. Table 5. COL Applicant Change Process for DC Information TYPE OF INFORMATION TYPE OF CHANGE REQUIREMENTS FOR CHANGE Tier 1 Exemption DCR Section VIII.A.4 10 CFR 52.63(b)(1) 10 CFR 52.7 10 CFR 50.12(a) Tier 2 or 2* Exemption DCR Section VIII.B.4 10 CFR 50.12(a) Operational Requirements Exemption DCR Section VIII.C.4 10 CFR 52.7 10 CFR 50.12(a) Tier 2* Departure (prior NRC approval required) DCR Section VIII.B.6.a Tier 2 Departure (prior NRC approval required) DCR Section VIII.B.5 Tier 2 Departure (prior NRC approval not required) DCR Section VIII.B.5 (Note that the departure does not involve a change to or departure from Tier 1, Tier 2*, or the generic technical