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:
NG COST ESTIMATES FOR NUCLEAR POWER REACTORS A. INTRODUCTION Decommissioning means permanently removing a nuclear facility from service and reducing radioactive material on the licensed site to levels that would permit termination of the Nuclear Regulatory Commission (NRC) license. A regulation became effective on July 29, 1996, that amended the NRC’s regulations on the decommissioning procedures that lead to termination of an operating license for nuclear power reactors. This rulemaking included changes to 10 CFR Part 2, “Rules of Practice for Domestic Licensing Proceedings and Issuance of Orders”; Part 50, “Domestic Licensing of Production and Utilization Facilities”; and Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.” The revised regulations contain requirements related to submitting decommissioning cost estimates. The purpose of this regulatory guide is to provide licensees with guidance on a method that is acceptable to the NRC staff on the preparation of the major cost estimates specified in the regulations: ! Preliminary decommissioning cost estimate (hereinafter referred to as the preliminary cost estimate) at or about five years prior to the projected end of operations. (10 CFR 50.75(f)(2)) ! Expected cost estimate contained in the Post-Shutdown Decommissioning Activities Report (PSDAR). (10 CFR 50.82(a)(4)(i)) 2 ! Site-specific decommissioning cost estimates submitted within two years following permanent cessation of operations. (10 CFR 50.82(a)(8)(iii)) In addition, a licensee may submit a certification amount of funds for decommissioning based on a site-specific cost estimate that is equal to or greater than that calculated in the formula in 10 CFR 50.75(c)(1) or (2) when a higher funding level is desired. ! Updated site-specific estimate of remaining decommissioning costs contained in the License Termination Plan (LTP). (10 CFR 50.82(a)(9)(ii)(F)) This regulatory guide establishes a