[Federal Register Volume 91, Number 65 (Monday, April 6, 2026)]
[Notices]
[Pages 17312-17313]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2026-06571]


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NUCLEAR REGULATORY COMMISSION

[Docket No. 50-615; NRC-2024-0146]


Tennessee Valley Authority; Clinch River Nuclear Site, Unit 1; 
Final Supplemental Environmental Impact Statement

AGENCY: Nuclear Regulatory Commission.

ACTION: Notice; issuance.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC), in cooperation 
with the U.S. Army Corps of Engineers, is issuing a final supplemental 
environmental impact statement (SEIS), ``Environmental Impact Statement 
for a Construction Permit Application at the Clinch River Nuclear Site: 
Final Report.'' The NRC is issuing this final SEIS as part of its 
review of the application submitted by Tennessee Valley Authority (TVA) 
for a construction permit (CP) for one GE Vernova Hitachi BWRX-300 
small modular reactor (SMR) at a site in Roane County, Tennessee, 
designated as Clinch River Nuclear Site, Unit 1 (CRN-1). TVA plans to 
construct and operate CRN-1 to demonstrate the feasibility of 
constructing and operating the BWRX-300 SMR. The final SEIS evaluates 
the environmental impacts of the proposed action of issuing a CP that 
would allow the construction of CRN-1, as well as the environmental 
impacts of alternatives to the proposed action.

DATES: The final SEIS is available as of April 1, 2026.

ADDRESSES: Please refer to Docket ID NRC-2024-0146 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-2024-0146. Address 
questions about Docket IDs in Regulations.gov to Bridget Curran; 
telephone: 301-415-1003; email: [email protected]. For technical 
questions, contact the individual 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 final SEIS is available in ADAMS under 
Accession No. ML26035A285. 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, Monday through Friday, except Federal 
holidays.
     Project Website: The final SEIS will also be available 
online at the CRN-1 project website at https://www.nrc.gov/reactors/new-reactors/advanced/who-were-working-with/applicant-projects/clinch-river.html.

FOR FURTHER INFORMATION CONTACT: Madelyn Nagel, Office of Nuclear 
Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001; telephone: 301-415-3470; email: 
[email protected].

SUPPLEMENTARY INFORMATION:

I. Background

    By letters dated April 28, 2025 (ADAMS Accession No. ML25118A209) 
and May 20, 2025 (ADAMS Package Accession No. ML25140A062), TVA 
submitted to the NRC, pursuant to section 103 of the Atomic Energy Act 
of 1954, as amended, and part 50 of title 10 of the Code of Federal 
Regulations (10 CFR), ``Domestic Licensing of Production and 
Utilization Facilities,'' an application for a CP that would allow the 
construction of CRN-1 in Roane County, Tennessee. The proposed facility 
would house one GE Vernova Hitachi BWRX-300 SMR. This submission 
initiated the proposed Federal action of determining whether to issue 
the requested CP. A notice of receipt and availability of the CP 
application was published in the Federal Register on June 10, 2025 (90 
FR 24425). A notice of acceptance for docketing of the complete 
application and opportunity to request a hearing was published in the 
Federal Register on July 15, 2025 (90 FR 31709). A notice of intent to 
prepare a supplement to the early site permit environmental impact 
statement (EIS) was published on July 18, 2025 (90 FR 34015).
    As set forth in 10 CFR 51.20(b), issuance of a CP to construct a 
nuclear power reactor is an action that requires an EIS or a supplement 
to an EIS. This notice is being published in accordance with the 
National Environmental Policy Act of 1969, as amended (NEPA), and the 
NRC's regulations implementing NEPA at 10 CFR part 51, ``Environmental 
Protection Regulations for Domestic Licensing and Related Regulatory 
Functions.'' In addition, pursuant to section 800.8(c) of title 36 of 
the Code of Federal Regulations (36 CFR), the NRC used the process and 
documentation for the preparation of the SEIS to comply with section 
106 of the National Historic Preservation Act of 1966, as amended, in 
lieu of the procedures set forth in 36 CFR 800.3 through 800.6.
    A notice of availability and request for comment on the draft SEIS 
was published in the Federal Register on November 7, 2025 (90 FR 
50498). The public comment period on the draft SEIS ended on December 
22, 2025, and the comments received on the draft SEIS are addressed in 
the final SEIS.

II. Discussion

    As discussed in the final SEIS, after weighing the environmental, 
economic, technical, and other benefits against environmental and other 
costs, and considering reasonable alternatives, the recommendation is, 
unless safety issues mandate otherwise, that the NRC issue the 
requested CP to TVA. This recommendation is based on the CP 
application, information gathered during the environmental audit, and 
responses to requests for clarifying information; consultation with 
Federal, State, Tribal, and local agencies; the independent 
environmental review and assessment summarized in the final SEIS; and 
consideration of public comments received on the draft SEIS. In 
addition, no environmentally preferable alternatives that meet the 
purpose and need for the proposed action were identified; therefore, 
there is no obvious superior alternative to the proposed action from an 
environmental perspective.

    Dated: April 1, 2026.


[[Page 17313]]


    For the Nuclear Regulatory Commission.
Jacob Zimmerman,
Acting Director, Division of Rulemaking, Environmental, and Financial 
Support, Office of Nuclear Material Safety and Safeguards.
[FR Doc. 2026-06571 Filed 4-3-26; 8:45 am]
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