Document: NRC Regulatory Guide
Document ID: 559a23f1-8bbf-427c-898a-b389648c996a
Document Type: regulatory_guide
Title: Guidance for Changes During Construction for New Nuclear Power Plants Being Constructed Under a Combined License Referencing a Certified Design Under 10 CFR Part 52 + HISTORY - HISTORY 04/2020 – DG-1321 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1934/ML19340B290.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.237
CFR Part: 
CFR Title: 

Content:
he information in the FSAR, as updated, for a facility under construction pursuant to a COL covered by 10 CFR 52.98(b) or the information in the FSAR, as updated, including Tier 2 but not Tier 1 for a facility under construction pursuant to a COL covered by 10 CFR 52.98(c). Nonetheless, a licensee may employ the PAR process for both Tier 1 and Tier 2 as described in COL-ISG-025 if the facility license includes that condition. Harmonization with International Standards The International Atomic Energy Agency (IAEA) works with member states and other partners to promote the safe, secure, and peaceful use of nuclear technologies. The IAEA has established a series of safety guides and standards constituting a high level of safety for protecting people and the environment. IAEA safety guides present international good practices and increasingly reflect best practices to help users striving to achieve high levels of safety. Pertinent to this RG, IAEA Safety Guide NS-G-2.3, “Modifications to Nuclear Power Plants,” issued October 2001 (Ref. 14), provides guidance and recommendations on controlling activities relating to modifications at nuclear power plants in order to reduce risk and to ensure that the configuration of the plant is at all times under control and that the modified configuration conforms to the approved basis for granting a nuclear power plant operating license. This regulatory guide incorporates similar processes and is consistent with the basic safety principles provided in IAEA Safety Guide NS-G-2.3. DG-1321, Page 8 C. STAFF REGULATORY GUIDANCE Under 10 CFR 52.98, changes to or departures from the design of a facility under construction pursuant to a COL as described in the facility FSAR, as updated, or Tier 2 are subject to the applicable change processes in Part 50 or the referenced design certification rule, respectively. If the applicable change process requires an amendment to authorize the change or departure, any such amendment is treated in