Document: NRC Regulatory Guide
Document ID: f0baf50b-5bb7-4783-b2f9-9586e09c97e1
Document Type: regulatory_guide
Title: Preparation of Environmental Reports for Nuclear Power Stations + HISTORY - HISTORY 02/2017 – DG-4026 , Proposed Revision 3 09/2014 – Periodic Review of Revision 2 – Revise (Rev. 3)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1611/ML16116A068.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.2
CFR Part: 
CFR Title: 

Content:
al core damage or by limiting radiological releases from containment in the event of substantial core damage. The current policy developed after the Limerick decision (Limerick Ecology Action vs. NRC, 1989, United States Court of Appeals, Third Circuit, 869 F.2d 719, 3d Cir. 1989 (Ref. 78)) requires the NRC staff to consider SAMAs in a DC environmental assessment and in a site-specific EIS for other licensing actions. Therefore, a SAMA evaluation is required in ERs for construction permits, operating licenses, combined licenses, and DCs. In preparing SAMA analyses, the applicant should apply the latest regulatory guidance as it relates to the determination and estimation of values and impacts including sensitivity analysis (e.g., see NUREG/BR-0058, “Regulatory Analysis Guidelines of the U.S. Nuclear Regulatory Commission” (Ref. 79); and NUREG/BR-0184, “Regulatory Analysis Technical Evaluation Handbook” (Ref. 80)). Values are the potential benefits of implementing the SAMA and are usually calculated for public health, occupational health, offsite property, and onsite property (see the prior discussion on severe accident analyses). The applicant should apply both a 7 percent and a 3 percent real discount rate as specified by Office of Management Budget in “Regulatory Analysis” (Ref. 81), and in NUREG/BR-0058 as part of the value determination. Impacts are the costs of implementing the SAMA. In addition, the applicant could consider methods and processes used in past applications as well as relevant industry guidance on SAMA analysis (e.g., the selection of design alternatives based on NEI 05-01, Revision A, “Severe Accident Mitigation Alternatives (SAMA) Analysis, Guidance Document,” (Ref. 82)) for those situations that are relevant to the quality of the Level 2 PRA being considered in the application, including design-specific PRA information for consideration of potential design improvements under 10 CFR 50.34(f). 13 The applicant should provide the