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:
uire licensees to submit a PSDAR, which must contain a site-specific decommissioning cost estimate. Additionally, 10 CFR 50.54(bb) requires licensees to submit an IFMP, including the projected cost of managing irradiated fuel, prior to or within two years following permanent cessation of operations. The regulation at 10 CFR 50.82(a)(8)(ii) and 10 CFR 52.110(h)(2) allows the licensee to use 3 percent of the generic amount of the decommissioning funds specified in 10 CFR 50.75(c) for decommissioning planning, and such amount may be expended during the operating life of a plant without any requirement for written notice to be made. Appropriate activities for the use of the initial 3 percent of the decommissioning funds include engineering design development, work package preparation, and licensing activities to transition the licensing basis from operations to decommissioning. Activities that would not be appropriate for the use of these planning funds include decontamination and dismantlement activities, draining of systems, removal of filters, projects designed to demonstrate the feasibility of a particular decommissioning activity, and spent fuel management planning. As an example, the decontamination of a building that is no longer in use and would ultimately have to be decontaminated before license termination is not an appropriate use of planning funds. After the licensee has submitted the certifications required by 10 CFR 50.82(a)(1) or 10 CFR 52.110(a), and 90 days after the NRC has received the PSDAR, which includes a site-specific decommissioning cost estimate, the licensee may use an additional 20 percent of the decommissioning funds prescribed in 10 CFR 50.75(c). The withdrawals may not adversely affect the licensee’s ability to fully fund the decommissioning trust. The licensee must ensure the availability of funds to ultimately release the site and terminate the license. The licensee is prohibited from using the remaining 77 percent of the