Document: NRC Regulatory Guide
Document ID: 94d9f3d5-978d-4aea-9ba7-486ca7f8503a
Document Type: regulatory_guide
Title: Standard Format and Content of Decommissioning Cost Estimates for Nuclear Power Reactors
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0131/ML013100099.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.202
CFR Part: 
CFR Title: 

Content:
ears prior to the projected end of operations submit [to the NRC] a preliminary decommissioning cost estimate which includes an up-to-date assessment of the major factors that could affect the cost to decommission.” Note that 10 CFR 50.75(f)(4) requires a licensee to include plans to adjust funding levels to demonstrate a reasonable level of financial assurance, if necessary, in the preliminary cost estimate. ! 10 CFR 50.82(a)(4)(i) requires a licensee to provide “...an estimate of expected costs...” for the activities being proposed in the PSDAR. The PSDAR is to be submitted prior to or within two years following permanent cessation of operations. Regulatory Guide 1.185, “Standard Format and Content for Post-Shutdown Decommissioning Activities Report” (Ref. 2), identifies the type of information to be contained in the PSDAR. The cost estimate may be (1) the amount of decommissioning funds estimated to be required pursuant to 10 CFR 50.75(b) and (c) as currently reported on a calendar-year basis at least once every two years to the NRC according to 10 CFR 50.75(f)(1), (2) a site-specific cost estimate, (3) an estimate based on actual costs at similar facilities that have undergone similar decommissioning activities, or (4) a generic cost estimate. ! 10 CFR 50.82(a)(8)(iii) requires a licensee to provide a site-specific decommissioning cost estimate within two years following permanent cessation of 5 operations. (This requirement may be satisfied by including a site-specific estimate as part of the PSDAR.) In addition, 10 CFR 50.75(c) specifies that the initial certification amount of funds for decommissioning be based on the amounts specified in 10 CFR 50.75(c)(1), which represents the minimum funding level that applicant and licensees must meet. At its discretion, however, a power reactor licensee may submit a certification based either on the formulas provided in 10 CFR.75(c)(1) and (2) or, when a higher funding level is desired, on a site-specific cost