Document: NRC Regulatory Guide
Document ID: 8ebf2253-f3d2-4bcd-ac80-7cbf6ab8d420
Document Type: regulatory_guide
Title: Assuring the Availability of Funds for Decommissioning Nuclear Reactors + HISTORY –HISTORY 02/2022 – DG-1348 Revision 1, Proposed Revision 3 06/2018 – DG-1348 , Proposed Revision 3 11/2016 – Periodic Review of Revision 2 – Reviewed with no issues identified 01/2011 – DG-1229 , Proposed Revision 2 05/2001 – DG-1106 , Proposed Revision 1 05/1989 – DG-1003 , Proposed Revision 0 (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2134/ML21347A081.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.159
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CFR Title: 

Content:
ormula amount for decommissioning cost estimates during the period of plant operation, this credit may be taken for the remaining years left on the operating license, and an additional pro rata credit may be taken into the presumed immediate dismantlement period (i.e., the first 7 years after shutdown), as long as such credit reflects the expected cash flow of expenditures during this period. If the NRC has approved license renewal for a plant, the licensee may take the credit during the extended license period. 2.2.8.4 A licensee that uses a site-specific decommissioning cost estimate may take the allowed credit through the projected decommissioning period, provided that the site-specific decommissioning cost estimate is based on a period of safe storage that is specifically described in the estimate. This decommissioning period includes the period of safe storage, final dismantlement, and license termination. The allowed credit during the period of safe storage must reflect any withdrawals from decommissioning funds during this period, such as withdrawals to pay for annual costs to maintain the facility in a safe storage condition. 2.2.8.5 When a licensee adjusts the cost estimate for decommissioning annually, pursuant to 10 CFR 50.75(b)(2), the adjusted estimate less amounts already accumulated should form the basis of future collections, which can take into account the allowed credit. Funds already accumulated, plus scheduled fund contributions, in the case of those licensees authorized to utilize external sinking funds, plus projected earnings on these funds, should be sufficient to pay decommissioning costs at the time termination of operation is expected, allowing for extending the real rate of return credit into the decommissioning period, as noted above. 2.2.8.6 Actual earnings on existing funds may be used to calculate the need for future funds. However, pursuant to 10 CFR 50.75(f)(2)-(3), when a power reactor licensee is within 5 years or when a non-power