Document: NRC Regulatory Guide
Document ID: 01fb3132-b05a-41a0-ab81-466a6fb6f4d3
Document Type: regulatory_guide
Title: Preparation of Environmental Reports for Nuclear Power Plant License Renewal Applications (Rev. 1)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML0916/ML091620409.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.2S1
CFR Part: 
CFR Title: 

Content:
lative effects in detail in its report entitled, “Considering Cumulative Effects under the National Environmental Policy Act.” On the basis of the guidance provided in the CEQ report, a cumulative impact analysis in the ER should include the following: • Consider the geographic scope (i.e., regions of influence). The regions of influence encompass the areas of effect and the distances at which impacts associated with license renewal may occur. Geographic boundaries may vary by the resource area being evaluated and the distances over which an impact may occur (e.g., the evaluation of impacts on air quality may have a greater regional extent than that of impacts on cultural resources). • Consider the timeframe for the analysis. The timeframe incorporates the sum of the effects of renewal in combination with past, present, and future actions, since impacts may accumulate or develop over time. The reasonably foreseeable timeframe for future actions evaluated is 20 years (based on the typical license renewal term) from the time the license renewal is granted. Past and present actions include all actions up to and including the time of the license renewal application; future actions are those that are “reasonably foreseeable,” that is, they are ongoing (and will continue into the future), are funded for future implementation, or are included in firm, near-term plans. Past and present actions are generally accounted for in the baseline assessment presented in the affected environment sections for each resource area (Chapter 3 of the ER). The direct and indirect impact analyses presented in Chapter 4 of the ER address the incremental impacts of DG-4015, Page 47 license renewal. These analyses are carried forward to the cumulative impact analysis, which expands the analysis to consider other past, present, and future actions. Table 4.12–1 of the GEIS lists examples of the types of other actions the analysis should consider. • Consider the potential impacting