Document: NRC Regulatory Guide
Document ID: 239cc7c1-f2cb-46cc-945d-8009db28aa6c
Document Type: regulatory_guide
Title: General Site Suitability Criteria for Nuclear Power Stations + HISTORY - HISTORY 12/2023 – DG-4034 , Proposed Revision 4 12/2011 – DG-4021 , Proposed Revision 3 02/1995 – DG-4004, Second Proposed Revision 2 11/1992 – DG-4003, Proposed Revision 2 (Rev. 4)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML2312/ML23123A090.pdf
Revision Date: 2023-10
Chapter: 
Section ID: RG-4.7
CFR Part: 
CFR Title: 

Content:
Z will depend on aspects of the plant design, such as the reactor power level, allowable containment leak rate, and engineered safety features, as well as the atmospheric dispersion characteristics of the site. RG 1.183 provides useful information on the design-basis accident radiological consequences analyses performed to show compliance with the siting dose requirements for the exclusion area boundary and LPZ. 1.4 Population Considerations DG-4034, Page 18 Locating reactors away from densely populated centers is part of the NRC’s defense in depth philosophy and facilitates emergency planning and preparedness, as well as reducing potential doses and property damage in the event of a severe accident. 1.4.1 Relevant Regulations • 10 CFR 50.34, “Contents of applications; technical information;” • 10 CFR 52.17, “Contents of applications; technical information;” • 10 CFR 52.79, “Contents of applications; technical information in final safety analysis report;” and • 10 CFR 100.21 “Non-seismic site criteria;” o 10 CFR 100.21(h). 1.4.2 Related Guidance • NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition;” and • American National Standards Institute/American Nuclear Society (ANSI/ANS) Standard ANSI/ANS-2.6-2018, “Standard Guidelines for Estimating Present & Projecting Future Population Distributions Surrounding Power Reactor Sites” (Ref. 48). 1.4.3 Considerations, Regulatory Experience, and Staff Position As stated in 10 CFR 100.21(h), reactors are to be located away from very densely populated centers; areas of low population density are generally preferred. In addition, 10 CFR 100.21(h) states that, for a site located away from a very densely populated center but not in an area of low density, acceptability will be determined after consideration of safety, environmental, economic, and other factors. The numerical values in this guide are generally consistent with past NRC