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:
d area defined in 10 CFR Part 20 and described in the FSAR, as updated, or Tier 2. c. If the NRC does not approve a request for a license amendment as submitted, the licensee is obligated to construct the facility in accordance with the design described in the FSAR, as updated, or the plant-specific DCD. In other words, proceeding with the change before receiving NRC approval is at the licensee’s own risk. d. In order to meet the above conditions, the licensee must determine whether a proposed change to the design of the facility as described in the FSAR or a departure from the plant- specific DCD requires an amendment before initiating construction. This is necessary to determine whether the departure affects Tier 1 or the ITAAC. 2. In order to ensure that a change to a facility or departure from Tier 2 that requires an amendment does not alter the basis for the acceptability of an ITAAC, and, for a COL referencing a certified design, to ensure that the facility design described in Tier 2, as changed, is an acceptable method for complying with Tier 1, a licensee may not submit a 10 CFR 52.99(c)(1) ITAAC closure notification unless the change to the design of the SSC subject to the ITAAC has been evaluated and approved under the applicable change process. 3. Although all COLs issued as of the date of this RG include a license condition authorizing PARs, a licensee has the option to use the guidance provided in this RG (and the provisions of its license condition) for a change to or departure from the design of the facility that requires a license amendment and any associated exemption from the certification information. DG-1321, Page 9 4. For purposes of this RG, “implementation” of a change to the FSAR, as updated, or a departure from the plant-specific DCD, during construction of a 10 CFR Part 52 facility, refers to when the licensee submits a notification under 10 CFR 52.99(c)(1) or 10 CFR 52.99(c)(2) that applies to the affected SSC. 5. When construction