[Federal Register Volume 90, Number 165 (Thursday, August 28, 2025)]
[Notices]
[Pages 42036-42038]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-16461]


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NUCLEAR REGULATORY COMMISSION

[NRC-2025-1006]


Environmental Assessment and Finding of No Significant Impact of 
Independent Spent Fuel Storage Facilities Decommissioning Funding Plans

AGENCY: Nuclear Regulatory Commission.

ACTION: Notice; issuance.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is publishing 
this notice regarding the issuance of a final environmental assessment 
(EA) and a finding of no significant impact (FONSI) for its review and 
approval of the initial and updated decommissioning funding plans 
(DFPs) submitted for the independent spent fuel storage installation 
(ISFSI) at Three Mile Island Nuclear Station, Unit 1 (TMI-1).

DATES: The EA and FONSI referenced in this document are available on 
August 28, 2025.

ADDRESSES: Please refer to Docket ID NRC-2025-1006 when contacting the 
NRC about the availability of information regarding this document. You 
may obtain publicly available information related to this document 
using any of the following methods:
     Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC-2025-1006. Address 
questions about Docket IDs in Regulations.gov to Bridget Curran; 
telephone: 301-415-1003; email: [email protected]. For technical 
questions, contact the individual(s) listed in the For Further 
Information Contact section of this document.
     NRC's Agencywide Documents Access and Management System 
(ADAMS): You may obtain publicly available documents online in the 
ADAMS Public Documents collection at https://www.nrc.gov/reading-rm/adams.html. To begin the search, select ``Begin ADAMS Public Search.'' 
For problems with ADAMS, please contact the NRC's Public Document Room 
(PDR) reference staff at 1-800-397-4209, at 301-415-4737, or by email 
to [email protected]. The ADAMS accession number for each document 
referenced (if it is available in ADAMS) is provided the first time 
that it is mentioned in this document.
     NRC's PDR: The PDR, where you may examine and order copies 
of publicly available documents, is open by appointment. To make an 
appointment to visit the PDR, please send an email to 
[email protected] or call 1-800-397-4209 or 301-415-4737, between 8 
a.m. and 4 p.m. eastern time (ET), Monday through Friday, except 
Federal holidays.

FOR FURTHER INFORMATION CONTACT: Yen-Ju Chen, Office of Nuclear 
Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001; telephone: 301-415-1018, email: [email protected].

SUPPLEMENTARY INFORMATION:

I. Introduction

    The NRC is considering the approval of the initial and updated DFPs 
submitted by the TMI-1 ISFSI licensee, and the NRC staff has prepared a 
final EA and FONSI determination for the initial and updated TMI-1 
ISFSI DFPs in accordance with the NRC regulations in part 51 of title 
10 of the Code of Federal Regulations (10 CFR), ``Environmental 
Protection Regulations for Domestic Licensing and Related Regulatory 
Functions,'' which implement the National Environmental Policy Act of 
1969, as amended (42 U.S.C. 4321 et seq.).
    The NRC requires its licensees to plan for the eventual 
decommissioning of their licensed facilities prior to license 
termination. On June 17, 2011, the NRC published a final rule in the 
Federal Register amending its decommissioning planning regulations (76 
FR 35512). The final rule amended the NRC regulation, 10 CFR 72.30, 
``Financial assurance and recordkeeping for decommissioning,'' which 
concerns financial assurance and decommissioning for ISFSIs. This 
regulation requires each holder of, or

[[Page 42037]]

applicant for, a license under 10 CFR part 72 to submit a DFP for the 
NRC's review and approval. The purpose of the DFP is to demonstrate the 
licensee's financial assurance, i.e., that funds will be available to 
decommission the ISFSI. The NRC staff will later publish its financial 
analyses of the DFP submittals which will be available for public 
inspection in ADAMS.

II. Discussion

    The table in this notice includes the plant name, docket number, 
licensee, and ADAMS accession number for the final EA and FONSI 
determination for the TMI-1 ISFSI. The table also includes the ADAMS 
accession numbers for other relevant documents, including the initial 
and updated DFP submittals. For further details with respect to these 
actions, see the NRC staff's final EA and FONSI determinations which 
are available for public inspection in ADAMS and at https://www.regulations.gov under Docket ID NRC-2025-1006. For additional 
direction on accessing information related to this document, see the 
ADDRESSES section of this document.

                    Finding of No Significant Impact
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                                    Three Mile Island Nuclear Station,
            Facility                          Unit 1 (TMI-1)
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Docket No.......................  72-77.
Licensees.......................  Exelon Generation Company, LLC (EGC)--
                                   initial submittal.
                                  Constellation Energy Generation, LLC
                                   (CEG)--updated submittal.
Proposed Action.................  The NRC's review and approval of EGC's
                                   initial and CEG's updated
                                   decommissioning funding plans (DFPs)
                                   submitted in accordance with 10 CFR
                                   72.30(c).
Environmental Impact of Proposed  The NRC staff has determined that the
 Action.                           proposed action, the review and
                                   approval of EGC's initial and CEG's
                                   updated DFPs, submitted in accordance
                                   with 10 CFR 72.30(c), will not
                                   authorize changes to licensed
                                   operations or maintenance activities,
                                   or result in changes in the types,
                                   characteristics, or quantities of
                                   radiological or non-radiological
                                   effluents released into the
                                   environment from the independent
                                   spent fuel storage installation
                                   (ISFSI), or result in the creation of
                                   solid waste. Moreover, the approval
                                   of the initial and updated DFPs will
                                   not authorize any construction
                                   activity, facility modification, or
                                   other land-disturbing activity. The
                                   NRC staff has concluded that the
                                   proposed action is a procedural and
                                   administrative action that will not
                                   have a significant impact on the
                                   environment.
Finding of No Significant Impact  The proposed action does not require
                                   changes to the ISFSI's licensed
                                   routine operations, maintenance
                                   activities, or monitoring programs,
                                   nor does it require new construction
                                   or land-disturbing activities. The
                                   scope of the proposed action concerns
                                   only the NRC's review and approval of
                                   EGC's initial and CEG's updated DFPs.
                                   The scope of the proposed action does
                                   not include, and will not result in,
                                   the review and approval of
                                   decontamination or decommissioning
                                   activities or license termination for
                                   the ISFSI or for other parts of TMI-
                                   1. Therefore, the NRC staff
                                   determined that approval of the
                                   initial and updated DFPs for the TMI-
                                   1 ISFSI will not significantly affect
                                   the quality of the human environment,
                                   and accordingly, the staff has
                                   concluded that a Finding of No
                                   Significant Impact (FONSI) is
                                   appropriate. The NRC staff further
                                   finds that preparation of an
                                   environmental impact statement is not
                                   required.
Available Documents.............  Federal Register notice. Final Rule
                                   ``Environmental Protection
                                   Regulations for Domestic Licensing
                                   and Related Regulatory Functions and
                                   Related Conforming Amendments,''
                                   dated March 12, 1984 (49 FR 9381).
                                  Federal Register notice. Final Rule
                                   ``Decommissioning Planning,'' dated
                                   June 17, 2011 (76 FR 35512).
                                  U.S. Nuclear Regulatory Commission.
                                   2003/08/31-NUREG-1748,
                                   ``Environmental Review Guidance for
                                   Licensing Actions Associated with
                                   NMSS Programs, Final Report.'' August
                                   2003 (ADAMS Accession No.
                                   ML032540811).
                                  U.S. Nuclear Regulatory Commission.
                                   ``Environmental Assessment for Final
                                   Rule: Decommissioning Planning'' (10
                                   CFR Parts 20, 30, 40, 50, 70, and 72;
                                   RIN 3150-AI55). February 2009 (ADAMS
                                   Accession No. ML090500648).
                                  U.S. Nuclear Regulatory Commission.
                                   ESA Section 7 No Effect Determination
                                   for ISFSI DFP Reviews (Note to File),
                                   dated May 15, 2017 (ADAMS Accession
                                   No. ML17135A062).
                                  U.S. Nuclear Regulatory Commission.
                                   ``Final Environmental Assessment and
                                   Finding of No Significant Impact for
                                   Exelon Generation Company, LLC,
                                   Initial Decommissioning Funding Plan
                                   Submitted in Accordance with 10 CFR
                                   72.30(b) and Constellation Energy
                                   Generation, LLC, Updated
                                   Decommissioning Funding Plan
                                   Submitted in Accordance with 10 CFR
                                   72.30(c), for Three Mile Island Unit
                                   1 Independent Spent Fuel Storage
                                   Installation,'' dated August 11, 2025
                                   (ML25071A052).
                                  U.S. Nuclear Regulatory Commission.
                                   ``Analysis of Exelon Generation
                                   Company, LLC's 2021 Initial
                                   Decommissioning Funding Plan and
                                   Constellation Energy Generation,
                                   LLC's 2023 Updated Decommissioning
                                   Funding Plan for The Three Mile
                                   Island Unit 1 Independent Spent Fuel
                                   Storage Installation,'' dated August
                                   19, 2025 (ML25059A120).
                                  U.S. Nuclear Regulatory Commission.
                                   ``Review of the Draft Environmental
                                   Assessment and Finding of No
                                   Significant Impact for The Three Mile
                                   Island Unit 1 Independent Spent Fuel
                                   Storage Installation Decommissioning
                                   Funding Plan,'' dated March 17, 2025
                                   (ML25042A627).
                                  Exelon Generation Company, LLC.
                                   Proposed Independent Spent Fuel
                                   Storage Installation (ISFSI)
                                   Decommissioning Funding Plan for
                                   Three Mile Island Nuclear Station,
                                   Unit 1, dated July 15, 2021
                                   (ML21196A412).
                                  Constellation Energy Generation, LLC.
                                   Report on Status of Decommissioning
                                   Funding for Reactors and Independent
                                   Spent Fuel Storage Installations,
                                   dated March 23, 2023 (ML23082A312).
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[[Page 42038]]

    Dated: August 25, 2025.

    For the Nuclear Regulatory Commission.
Haimanot Yilma,
Acting Chief, Storage and Transportation Licensing Branch, Division of 
Fuel Management, Office of Nuclear Material Safety and Safeguards.
[FR Doc. 2025-16461 Filed 8-27-25; 8:45 am]
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