Document: NRC Regulatory Guide
Document ID: f01d709b-086b-4bc7-9dc5-ed791695faa4
Document Type: regulatory_guide
Title: Use of Plant Parameter Envelope In Early Site Permit Applications for Nuclear Power Plants + HISTORY - HISTORY 06/2021 – DG-4029 , Proposed Revision 0
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML2104/ML21049A181.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-4.27
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Content:
, and peaceful use of nuclear technologies. The IAEA develops Safety Requirements and Safety Guides for protecting people and the environment from harmful effects of ionizing radiation. This system of safety fundamentals, safety requirements, safety guides, and other relevant reports, reflects an international perspective on what constitutes a high level of safety. To inform its development of this RG, the NRC considered IAEA Safety Requirements and Safety Guides pursuant DG-4029, Page-4 to the Commission’s International Policy Statement (Ref. 7) and Management Directive 6.6, “Regulatory Guides” (Ref. 8). The following IAEA Safety Guide includes information on the site evaluations that should be conducted for nuclear reactor sites: • IAEA Specific Safety Requirements (SSR) -1, “Site Evaluation for Nuclear Installations” (Ref. 9) Although SSR-1 provides information on performing site evaluations, it does not specifically mention the development of a PPE for sites without a selected reactor technology. SSR-1 discusses the appropriate consideration of the installed nuclear capacity in site evaluations, as well as the characterization of the hazards relevant to the site and the design of the nuclear facility. DG-4029, Page-5 C. STAFF REGULATORY GUIDANCE This section provides descriptions of the methods, approaches, or data that the staff considers acceptable for meeting the requirements of the regulations cited in the Introduction. The issuance of this guide on the PPE concept for an ESP application is consistent with the NRC’s implementation of a risk-informed, performance-based approach to licensing. 1. A PPE is a set of postulated values of plant design parameters that an ESP applicant can use to bound the design characteristics of a reactor or reactors that might be constructed at a given site. 2. An applicant may use a PPE as a surrogate for facility design information to support demonstration of compliance with 10 CFR 52.17, “Contents of