Document: NRC Regulatory Guide
Document ID: 9c2e51dc-3cee-46a8-8d56-738b8eca7e2e
Document Type: regulatory_guide
Title: Standard Format and Content for Post-Shutdown Decommissioning Activities Report (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2134/ML21347A138.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.185
CFR Part: 
CFR Title: 

Content:
es, systems, or components that are not contaminated or in the immediate proximity of contaminated systems that could result in a worker dose. Examples of significant increases in cost associated with decommissioning the facility include (1) a revised cost estimate that is more than 20 percent greater than the site-specific decommissioning cost estimate or the PSDAR cost estimate, or (2) a 25-percent increase in the cost needed to complete any major milestone. For any significant increase in cost, the licensee must provide written notification to the NRC. Notification should be made only if cost changes occur as a result of changes in the timing of activities, or if the change in planned decommissioning activities results in a significant increase in decommissioning costs. Notification of increased decommissioning costs is not necessary if the increases are simply because of higher estimated costs caused by inflation. However, the licensee should include this information in the annual report submitted in accordance with 10 CFR 50.82(a)(8)(v) or 10 CFR 52.110(h)(5), as appropriate. The licensee should evaluate changes in the decommissioning activities with regard to their potential environmental impact to comply with 10 CFR 50.82(a)(6)(ii) or 10 CFR 52.110(f)(2). If the expected impact is greater than that predicted in appropriate federally issued environmental review documents, or if it is outside the bounds of these documents, the licensee must either submit a license amendment request or an exemption request or change its decommissioning plans to avoid the activity that would result in the unbounded impact. If the licensee chooses to submit a license amendment request or exemption request, it would need to provide the NRC with the necessary environmental information, in accordance with 10 CFR 51.41, “Requirement to submit environmental information,” addressing the unbounded impacts. The NRC would then prepare an environmental assessment or other appropriate