Document: NRC Regulatory Guide
Document ID: 151ab883-1221-4a79-88d6-a2631cce2239
Document Type: regulatory_guide
Title: Decommissioning of Nuclear Power Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2134/ML21347A080.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.184
CFR Part: 
CFR Title: 

Content:
d with the major decommissioning activities allowed under 10 CFR 50.82 and 10 CFR 52.110 unless the Commission issues an order prohibiting or otherwise prescribing any major decommissioning activities because of a deficiency in the PSDAR. Licensees may opt to submit the PSDAR before permanent cessation of operations or permanent removal of fuel from the reactor vessel to minimize any delay in decommissioning activities resulting DG-1347 Revision 1, Page 15 from the 90-day waiting period. However, licensees must submit certifications for permanent cessation of operations and permanent removal of fuel before initiating major decommissioning activities. 7. Major Decommissioning Activities As long as fuel remains in the reactor core, facility modifications under 10 CFR 50.59 and 10 CFR 52.63(b)(2) must be consistent with continued facility operation. Once the licensee certifies that the facility has permanently ceased operations and that the fuel has been permanently removed from the reactor vessel, and the 90-day period has passed, major decommissioning activities, as that term is defined in 10 CFR 50.2, may begin (e.g., permanent removal of major radioactive components). The licensee’s decommissioning activities are prescribed by the requirements of 10 CFR 50.59, 10 CFR 50.82, and 10 CFR 52.110. In addition, as stated in 10 CFR 50.82(a)(6) and 10 CFR 52.110(f), licensees of permanently shutdown reactors may not perform any decommissioning activities that would foreclose the release of the site for possible unrestricted use, would result in significant environmental impacts not bounded by appropriate federally issued environmental review documents, or would result in there no longer being reasonable assurance that adequate funds will be available for decommissioning. The PSDAR must contain a discussion whether the site-specific environmental impacts of the proposed decommissioning activities will be bounded by appropriate federally issued environmental review