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:
nting the mandatory information collections in 10 CFR Parts 20, 50, 51, 52, and 100 that are subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). These information collections were approved by the Office of Management and Budget (OMB), under control numbers 3150-0011, 3150-0014, 3150-0021, 3150-0151, and 3150-0093, respectively. Send comments regarding this information collection to the FOIA, Library, and Information Collections Branch (T6-A10M), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by email to Infocollects.Resource@nrc.gov, and to the OMB reviewer at: OMB Office of Information and Regulatory Affairs, (3150-0011, 3150-0014, 3150-0021, 3150-0151, 3150-0093), Attn: Desk Officer for the Nuclear Regulatory Commission, 725 17th Street, NW, Washington, DC, 20503; e-mail: oira_submissions@omb.eop.gov. Public Protection Notification The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of information unless the document requesting or requiring the collection displays a currently valid OMB control number. DG-4034, Page 4 B. DISCUSSION Reason for Revision The NRC revised RG 4.7 to include alternative approaches to the population‑density criterion and to expand the regulatory guidance developed for large LWR technology with appropriate modifications for advanced reactor designs (e.g., non-LWR technologies and light-water small modular reactors). Specifically, this revision includes a new appendix A, which provides guidance on alternatives to the existing guidance in section C.1.4 of this RG that establishes a fixed distance of 20 miles out to which population density is assessed for any new application. Readers should understand that the body of this RG was developed for large LWRs, while appendix A is intended for advanced reactor designs. This revision also removes repetition and improves clarity. Text from the discussion section and the two tables in Revision 3 of the RG were brought