Document: NRC Regulatory Guide
Document ID: b3da4d67-03d8-4f52-b04b-8e76d142c857
Document Type: regulatory_guide
Title: Guidance for a Technology-Inclusive, Risk-Informed, and Performance-Based Methodology to Inform the Licensing Basis and Content of Applications for Licenses, Certifications, and Approvals for Non-Light Water Reactors + HISTORY - HISTORY 05/2019 – Issued DG-1353 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1831/ML18312A242.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.233
CFR Part: 
CFR Title: 

Content:
tes include recurring examinations of the risk triplet questions of what can go wrong, how likely it is, and what the consequences are. The IDP should also consider key attributes such as the level of understanding of the design and plant behavior, the magnitude and sources of uncertainties, and the effectiveness of any compensatory actions included in the design or programmatic controls. C.3 Staff Position: NEI 18-04 provides an acceptable method for assessing the adequacy of DID to be provided by plant capabilities and programmatic controls, with the following clarification: a. Section 5.9.6 in NEI 18-04 discusses change control processes following the issuance of a license, certification, or approval. The staff makes no findings on this topic. The staff may address such change control processes, as well as other aspects of how design assumptions carry into plant operations, in future regulatory actions, including possible rulemakings, licenses conditions, and development of guidance documents. 4. Other Considerations Emergency Preparedness The NRC is issuing for public comment a proposed rule and related guidance, draft Regulatory Guide (DG)-1350, “Performance-Based Emergency Preparedness for Small Modular Reactors, Non-Light-Water Reactors, and Non-Power Production or Utilization Facilities.” Appendix A to DG-1350 provides a general methodology for establishing an appropriate emergency planning zone based on analyzing a spectrum of credible accidents for a specific design and site. An emergency planning zone is the area surrounding some nuclear facilities within which special considerations and management practices are preplanned and exercised in case protective actions are needed to protect the public from a release of radioactive material. For non-LWRs, the spectrum of events for evaluating the need for emergency planning zones is expected to be the LBEs as described in NEI 18-04, adjusted as necessary to reflect the specific criteria in the emergency