[Federal Register Volume 90, Number 125 (Wednesday, July 2, 2025)]
[Rules and Regulations]
[Pages 28869-28873]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-12396]
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Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
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Federal Register / Vol. 90, No. 125 / Wednesday, July 2, 2025 / Rules
and Regulations
[[Page 28869]]
NUCLEAR REGULATORY COMMISSION
10 CFR Part 52
[NRC-2025-0018]
RIN 3150-AL26
Revising the Duration of Design Certifications
AGENCY: Nuclear Regulatory Commission.
ACTION: Direct final rule.
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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is amending its
regulations to revise the duration of design certifications (DCs).
Specifically, this direct final rule replaces the 15-year duration for
DCs with a 40-year duration period, both for existing DCs currently in
effect and generically for future DCs, including renewals. This direct
final rule does not change the date of issuance or renewal for existing
DCs (i.e., the start date by which an existing DC may be referenced
remains unchanged). This direct final rule also incorporates a minor
editorial correction.
DATES: The final rule is effective September 15, 2025, unless
significant adverse comments are received by August 1, 2025. If the
direct final rule is withdrawn as a result of such comments, timely
notice of the withdrawal will be published in the Federal Register.
Comments received after this date will be considered if it is practical
to do so, but the NRC is able to ensure consideration only for comments
received on or before this date. Comments received on this direct final
rule will also be considered to be comments on the companion proposed
rule published in the Proposed Rules section of this issue of the
Federal Register.
ADDRESSES: You may submit comments by any of the following; however,
the NRC encourages electronic comment submission through the Federal
rulemaking website:
Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC-2025-0018. Address
questions about NRC dockets to Helen Chang; telephone: 301-415-3228;
email: [email protected]. For technical questions, contact the
individuals listed in the FOR FURTHER INFORMATION CONTACT section of
this document.
Email comments to: [email protected]. If you do
not receive an automatic email reply confirming receipt, then contact
us at 301-415-1677.
Fax comments to: Secretary, U.S. Nuclear Regulatory
Commission at 301-415-1101.
Mail comments to: Secretary, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001, ATTN: Rulemakings and
Adjudications Staff.
Hand deliver comments to: 11555 Rockville Pike, Rockville,
Maryland 20852, between 7:30 a.m. and 4:15 p.m. eastern time, Federal
workdays; telephone: 301-415-1677.
You can read a plain language description of this direct final rule
at https://www.regulations.gov/docket/NRC-2025-0018. For additional
direction on obtaining information and submitting comments, see
``Obtaining Information and Submitting Comments'' in the SUPPLEMENTARY
INFORMATION section of this document.
FOR FURTHER INFORMATION CONTACT: Daniel Doyle, Office of Nuclear
Material Safety and Safeguards, telephone: 301-415-3748, email:
[email protected]; or Jordan Glisan, Office of Nuclear Reactor
Regulation, telephone: 301-415-3478, email: [email protected]. Both
are staff of the U.S. Nuclear Regulatory Commission, Washington, DC
20555-0001.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Obtaining Information and Submitting Comments
II. Rulemaking Procedure
III. Background
IV. Discussion
V. Section-by-Section Analysis
VI. Regulatory Flexibility Certification
VII. Regulatory Analysis
VIII. Backfitting and Issue Finality
IX. Plain Writing
X. Environmental Assessment and Final Finding of No Significant
Environmental Impact
XI. Paperwork Reduction Act
XII. Regulatory Planning and Review
XIII. Congressional Review Act
XIV. Voluntary Consensus Standards
XV. Availability of Documents
I. Obtaining Information and Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC-2025-0018 when contacting the NRC
about the availability of information for this action. You may obtain
publicly available information related to this action by any of the
following methods:
Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC-2025-0018.
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 Web-based ADAMS
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]. For the convenience of the reader,
instructions about obtaining materials referenced in this document are
provided in the ``Availability of Documents'' section of 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.
Technical Library: The Technical Library, which is located
at Two White Flint North, 11545 Rockville Pike, Rockville, Maryland
20852, is open by appointment only. Interested parties may make
appointments to examine documents by contacting the NRC Technical
Library by email at [email protected] between 8 a.m. and 4 p.m.
eastern time, Monday through Friday, except Federal holidays.
B. Submitting Comments
The NRC encourages electronic comment submission through the
Federal rulemaking website (https://www.regulations.gov). Please
include
[[Page 28870]]
Docket ID NRC-2025-0018 in your comment submission.
The NRC cautions you not to include identifying or contact
information that you do not want to be publicly disclosed in your
comment submission. The NRC will post all comment submissions at
https://www.regulations.gov as well as enter the comment submissions
into ADAMS. The NRC does not routinely edit comment submissions to
remove identifying or contact information.
If you are requesting or aggregating comments from other persons
for submission to the NRC, then you should inform those persons not to
include identifying or contact information that they do not want to be
publicly disclosed in their comment submission. Your request should
state that the NRC does not routinely edit comment submissions to
remove such information before making the comment submissions available
to the public or entering the comment into ADAMS.
II. Rulemaking Procedure
Because the NRC considers this action to be non-controversial, the
NRC is using the ``direct final rule procedure'' for this rule. This
amendment is effective on September 15, 2025. However, if the NRC
receives significant adverse comments on this direct final rule by
August 1, 2025, then the NRC will publish a document that withdraws
this action and will address the comments received in a subsequent
final rule or as otherwise appropriate. Absent significant
modifications to the proposed revisions requiring republication, the
NRC will not initiate a second comment period on this action.
A significant adverse comment is a comment where the commenter
explains why the rule would be inappropriate, including challenges to
the rule's underlying premise or approach, or would be ineffective or
unacceptable without a change. A comment is adverse and significant if:
(1) The comment opposes the rule and provides a reason sufficient
to require a substantive response in a notice-and-comment process. For
example, a substantive response is required when:
(a) The comment causes the NRC staff to reevaluate (or reconsider)
its position or conduct additional analysis;
(b) The comment raises an issue serious enough to warrant a
substantive response to clarify or complete the record; or
(c) The comment raises a relevant issue that was not previously
addressed or considered by the NRC staff.
(2) The comment proposes a change or an addition to the rule, and
it is apparent that the rule would be ineffective or unacceptable
without incorporation of the change or addition.
(3) The comment causes the NRC staff to make a change (other than
editorial) to the rule.
For detailed instructions on filing comments, please see the
ADDRESSES section of this document.
III. Background
A standard design certification, also referred to simply as a
design certification (DC), is a Commission approval by regulation of a
final standard design for a nuclear power facility. A DC is codified
via rulemaking and is independent of a specific site or an application
to construct or operate a plant. An application to construct or operate
a plant may reference a DC to take advantage of reviews previously
completed by the NRC, though such an application must still address
certain site-specific matters. The NRC's regulations governing DCs are
codified in part 52 of title 10 of the Code of Federal Regulations (10
CFR), Subpart B, ``Standard Design Certifications,'' and specific DCs
are published as appendices to part 52.
In this direct final rule, the NRC is amending its regulations to
revise the duration of DCs, as approved by the Commission in Staff
Requirements Memorandum (SRM)-COMDAW-24-0001, ``Revising the Duration
of Design Certifications,'' dated November 14, 2024. Specifically, this
direct final rule replaces the 15-year duration period for initial DCs
and renewals with a 40-year duration period, both generically and for
each DC currently in effect. For DCs currently in effect, the
respective date of issuance or renewal (i.e., the start date by which a
DC may be referenced) remains unchanged by this direct final rule.
Otherwise stated, the 40-year duration period starts upon the date of
issuance or renewal of the DC.
Five DCs are currently in effect: appendix A to 10 CFR part 52,
``Design Certification Rule for the U.S. Advanced Boiling Water
Reactor,'' appendix D to 10 CFR part 52, ``Design Certification Rule
for the AP1000 Design,'' appendix E to 10 CFR part 52, ``Design
Certification Rule for the ESBWR Design,'' appendix F to 10 CFR part
52, ``Design Certification Rule for the APR1400 Design,'' and appendix
G to 10 CFR part 52, ``Design Certification Rule for NuScale.'' Two DCs
have expired because no timely renewal applications were submitted in
accordance with Sec. 52.57, ``Application for renewal.'' These are
appendix B to 10 CFR part 52, ``Design Certification Rule for the
System 80 + Design,'' and appendix C to 10 CFR part 52, ``Design
Certification Rule for the AP600 Design.'' Accordingly, this direct
final rule applies to the five DCs currently in effect and does not
apply to the two expired DCs.
IV. Discussion
The NRC is amending its regulations to revise the duration of DCs
by replacing the 15-year duration for initial DCs and renewals with a
40-year duration period, both generically and for each DC currently in
effect, as approved by the Commission in SRM-COMDAW-24-0001, ``Revising
the Duration of Design Certifications.''\1\ The NRC is revising these
regulations based on lessons learned from carrying out the DC renewal
process. These amendments will reduce unnecessary regulatory burden on
applicants and save NRC resources without any reduction in safety or
security.
As discussed in the 1989 final rule promulgating 10 CFR part 52,
the 15-year duration for DCs was originally intended to allow actual
operating experience with a given design to accumulate before the DC
either expires or becomes eligible for renewal (54 FR 15372; April 18,
1989). However, experience has shown that the current 15-year
certification period does not allow for sufficient time for such
operating experience to accumulate prior to a DC either expiring or
needing to be renewed to remain effective. In this situation, both the
DC renewal applicant and the NRC expend resources involved with the
submittal and review of a DC renewal application that does not reflect
additional insights derived from the DC being referenced in the
licensing context.
In addition, other existing regulations will continue to ensure
that codified DCs and the plants referencing them meet safety and
security requirements. With respect to generic changes to DC rules, the
Commission has existing criteria under Sec. 52.63(a)(1) for
determining when it may modify, rescind, or impose new requirements on
the certification information for a previously certified design. For
example, one way the Commission may make changes to a DC rule is where
the change is ``necessary to provide adequate protection of the public
health and safety or the common defense and security'' (10 CFR
52.63(a)(1)(ii)). The Commission may change a DC rule either on its own
motion or in response to a petition for rulemaking from any person,
including design vendors, and such changes will provide for notice and
opportunity for public comment (10 CFR 52.63(a)(2)(ii)). For potential
plant-
[[Page 28871]]
specific safety or security issues, the Commission may use plant-
specific orders, subject to applicable issue finality provisions (e.g.,
Sec. 52.63(a)(4) for Tier 1 information). In addition, licensees and
applicants who reference a DC may also address potential safety or
security concerns using the departure process described in the
associated DC rule. That is, all DC rules are codified in appendices to
part 52 and are structured such that Section VIII of the associated DC
rule appendix prescribes an appropriate process for evaluating
potential departures from the DC rule, including via a request for a
license amendment or exemption. If NRC approval is required, the NRC
would evaluate the request using its typical processes.
Accordingly, the change in duration for DCs will provide more time
for a design to be referenced in a license application and more time
for the design vendor to accumulate construction and actual operating
experience before a design vendor would need to submit a renewal
application. In addition, it will reduce unnecessary burdens with no
reduction in safety or security. Therefore, the NRC is amending its
regulations to change the DC duration to 40 years generically in
Sec. Sec. 52.55, 52.57, and 52.61 as well as for DCs currently in
effect in the applicable appendices to 10 CFR part 52.
V. Section-by-Section Analysis
The following paragraphs describe the specific changes proposed by
this rulemaking.
Section 52.55 Duration of Certification
This direct final rule revises paragraph (a) to result in a finding
that a DC is generically valid for 40 years from the date of issuance.
Section 52.57 Application for Renewal
This direct final rule revises paragraph (a) to conform to the
change in Section 52.55.
Section 52.61 Duration of Renewal
This direct final rule revises Sec. 52.61 so that the duration of
renewal is not more than 40 years.
Appendix A to Part 52 Design Certification Rule for the U.S. Advanced
Boiling Water Reactor
This direct final rule revises section VII so that the appendix can
be referenced for a period of 40 years.
Appendix D to Part 52 Design Certification Rule for the AP1000 Design
This direct final rule revises section VII so that the appendix can
be referenced for a period of 40 years.
Appendix E to Part 52 Design Certification Rule for the ESBWR Design
This direct final rule revises section VII so that the appendix can
be referenced for a period of 40 years.
Appendix F to Part 52 Design Certification Rule for the APR1400 Design
This direct final rule revises section VII so that the appendix can
be referenced for a period of 40 years. Additionally, it makes a minor
editorial correction in section III.E by replacing the word
``entirely'' with the word ``wholly,'' consistent with the
corresponding language in the appendices for all other currently
effective DCs.
Appendix G to Part 52 Design Certification Rule for NuScale
This direct final rule revises section VII so that the appendix can
be referenced for a period of 40 years.
VI. Regulatory Flexibility Certification
Under the Regulatory Flexibility Act (5 U.S.C. 605(b)), the NRC
certifies that this rule does not have a significant economic impact on
a substantial number of small entities. These amendments will reduce
unnecessary regulatory burden on applicants without any reduction in
safety or security. This final rule affects only reactor vendors and
the licensing and operation of nuclear power plants. These companies do
not fall within the scope of the definition of ``small entities'' set
forth in the Regulatory Flexibility Act or the size standards
established by the NRC (10 CFR 2.810).
VII. Regulatory Analysis
The NRC estimates that the rule results in averted costs of
approximately $56.7 million (7 percent net present value (NPV)) in 2024
dollars to the NRC, licensees, and applicants over the 65-year analysis
period (2026-2090). Because the NRC does not currently expect any of
these existing designs would be renewed beyond this analysis period,
i.e., due to assumed technological advancements over this time period,
the NPV over a perpetual horizon is the same. The annualized cost
savings over the 65-year analysis period are approximately $4.03
million (7 percent NPV) and $3.89 million (3 percent NPV) per year. The
averted costs are roughly evenly distributed between the NRC and
industry. The NRC considered all five active DCs being renewed multiple
times throughout the analysis period based on staff expectations, with
averted renewals due to the first 40-year period. In the first 20 years
after the rule becomes effective (2026-2045), the NRC estimates that
the new 40-year duration will result in averted costs of $50.5 million
to NRC and industry (7 percent NPV) before the first currently
effective DC would either expire or need to be renewed in 2046. The
generic change to the duration of DCs would also result in averted
costs for future design certification applicants and the NRC because of
averted renewals. For example, if a licensee or applicant submits a
hypothetical design certification between 2026 and 2030, the NRC
estimates that this rule would result in averted costs of approximately
$5.5 million to the NRC and industry, though costs would vary depending
on the specific year of submittal (7 percent NPV). Therefore, the cost
savings reported above may be an underestimate of the actual cost
savings. Based on this analysis, the NRC considers this rule to be cost
beneficial to both industry and the NRC.
VIII. Backfitting and Issue Finality
The NRC has determined that this direct final rule does not
constitute backfitting as defined in the backfit rule (Sec. 50.109)
and is not inconsistent with any applicable issue finality provision in
10 CFR part 52. Increasing the duration for which a design
certification is valid does not affect any previously issued licenses.
This rule also does not modify, rescind, or impose new requirements on
the certification information in an existing standard design
certification.
IX. Plain Writing
The Plain Writing Act of 2010 (Pub. L. 111-274) requires Federal
agencies to write documents in a clear, concise, and well-organized
manner. The NRC has written this document to be consistent with the
Plain Writing Act as well as the Presidential Memorandum, ``Plain
Language in Government Writing,'' published June 10, 1998 (63 FR
31885).
X. Environmental Assessment and Final Finding of No Significant
Environmental Impact
The NRC has determined under the National Environmental Policy Act
of 1969, as amended (NEPA), and the NRC's regulations in subpart A,
``National Environmental Policy Act; Regulations Implementing Section
102(2),'' of 10 CFR part 51,
[[Page 28872]]
``Environmental Protection Regulations for Domestic Licensing and
Related Regulatory Functions,'' that this direct final rule, if
confirmed, would not be a major Federal action significantly affecting
the quality of the human environment and, therefore, an environmental
impact statement is not required. The NRC's environmental assessment
and finding of no significant impact is based on the following
considerations. As reflected in 10 CFR 51.32(b)(1)-(2) and as discussed
in the 2007 final rule amending 10 CFR parts 51 and 52 (72 FR 49352;
August 28, 2007), a rule issuing or amending a design certification
does not authorize the siting, construction, or operation of a facility
referencing any particular design; it only codifies the design in a
rule. This codified finding of no significant impact applies to this
rule's changes extending the duration of DCs currently in effect. By
the same logic, the NRC also finds that there is no significant impact
associated with this rule's changes to 10 CFR 52.55, 52.57, and 52.61
to generically extend the duration of future DCs. The NRC also
considered whether extending the duration of existing DCs could impact
the agency's NEPA consideration of severe accident mitigation design
alternatives (SAMDA) for those DCs. Because this rule does not result
in any design changes, the NRC concluded, consistent with 10 CFR
51.30(d), that no additional analysis of SAMDAs was necessary at this
time, although the NRC will further consider SAMDAs at future points in
the licensing process, as appropriate. The NRC will evaluate the
environmental impacts and issue an environmental impact statement as
appropriate under NEPA as part of any application for the construction
and operation of a facility referencing any particular design
certification rule.
The determination of this environmental assessment and finding of
no significant impact is that there will be no significant impact from
this action. The environmental assessment and finding of no significant
impact are available as indicated in the Availability of Documents
section.
XI. Paperwork Reduction Act
This final rule does not contain any new or amended collections of
information subject to the Paperwork Reduction Act of 1995 (44 U.S.C.
3501 et seq.). Existing collections of information were approved by the
Office of Management and Budget (OMB), approval number 3150-0151.
Public Protection Notification
The NRC may not conduct or sponsor, and a person is not required to
respond to, a collection of information unless the document requesting
or requiring the collection displays a currently valid OMB control
number.
XII. Regulatory Planning and Review
Executive Order 12866
Executive Order (E.O.) 12866, as amended by E.O.s 14215 (Ensuring
Accountability for All agencies) and 13563 (Improving Regulation and
Regulatory Review), directs agencies to assess the costs and benefits
of available regulatory alternatives, and if regulation is necessary,
to select regulatory approaches that maximize net benefits (including
potential economic, environmental, public health and safety effects,
distributive impacts, and equity). E.O. 13563 emphasizes the importance
of quantifying costs and benefits, reducing costs, harmonizing rules,
and promoting flexibility. The Office of Information and Regulatory
Affairs (OIRA) has designated this direct final rule ``a significant
regulatory action'' as defined under section 3(f) of E.O. 12866, though
not economically significant under 3(f)(1). Accordingly, the NRC
submitted this direct final rule to OMB for E.O. 12866 review.
Review Under E.O.s 14154, 14192, 14215, and 14300
The NRC has examined this direct final rule and has determined that
it is consistent with the policies and directives outlined in E.O.
14154 ``Unleashing American Energy,'' E.O. 14192, ``Unleashing
Prosperity Through Deregulation,'' E.O. 14215 ``Ensuring Accountability
for All Agencies,'' and E.O. 14300, ``Ordering the Reform of the
Nuclear Regulatory Commission.'' This direct final rule is considered
an E.O. 14192 deregulatory action. We estimate that this rule generates
$4.03 million in annualized costs savings at a 7% discount rate,
discounted relative to year 2024, over a perpetual time horizon.
Details on the estimated costs of this final rule can be found in
Section VII. Regulatory Analysis.
XIII. Congressional Review Act
This final rule is a rule as defined in the Congressional Review
Act (5 U.S.C. 801-808). However, the Office of Management and Budget
has found that it does not meet the criteria at 5 U.S.C. 804(2).
XIV. Voluntary Consensus Standards
The National Technology Transfer and Advancement Act of 1995,
Public Law 104-113, requires that Federal agencies use technical
standards that are developed or adopted by voluntary consensus
standards bodies unless the use of such a standard is inconsistent with
applicable law or otherwise impractical. In this direct final rule, the
NRC will revise the duration of design certifications in 10 CFR part
52. This action does not constitute the establishment of a standard
that contains generally applicable requirements.
XV. Availability of Documents
The documents identified in the following table are available to
interested persons as indicated.
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ADAMS Accession
Document No./Federal
Register citation
------------------------------------------------------------------------
Environmental Assessment and Finding of No ML25049A031
Significant Impact by the U.S. Nuclear Regulatory
Commission Relating to Revising the Duration of
Design Certifications, dated May 2025...............
SRM-COMDAW-24-0001, ``Revising the Duration of Design ML24319A209
Certifications,'' dated November 14, 2024...........
Federal Register notice--Final Rule, ``Early Site 54 FR 15372
Permits; Standard Design Certifications; and
Combined Licenses for Nuclear Power Reactors,''
dated April 18, 1989................................
Federal Register notice--Final Rule, ``Licenses, 72 FR 49352
Certifications, and Approvals for Nuclear Power
Plants,'' dated August 28, 2007.....................
Presidential Memorandum, ``Plain Language in 63 FR 31885
Government Writing,'' published June 10, 1998.......
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[[Page 28873]]
Endnotes
\1\ For Appendix D to Part 52, ``Design Certification Rule for
the AP1000 Design,'' this rule replaces the 20-year duration (rather
than 15-year duration) with a 40-year duration period. The initial
duration period was previously extended from 15 years to 20 years
for the AP1000 design by direct final rule (86 FR 52593; September
22, 2021).
List of Subjects in 10 CFR Part 52
Administrative practice and procedure, Antitrust, Combined license,
Early site permit, Emergency planning, Fees, Inspection, Issue
finality, Limited work authorization, Manufacturing license, Nuclear
power plants and reactors, Probabilistic risk assessment, Prototype,
Reactor siting criteria, Redress of site, Penalties, Reporting and
recordkeeping requirements, Standard design, Standard design
certification.
For the reasons set out in the preamble and under the authority of
the Atomic Energy Act of 1954, as amended; the Energy Reorganization
Act of 1974, as amended; and 5 U.S.C. 552 and 553, the NRC is adopting
the following amendments to 10 CFR part 52:
PART 52--LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER
PLANTS
0
1. The authority citation for part 52 continues to read as follows:
Authority: Atomic Energy Act of 1954, secs. 103, 104, 147, 149,
161, 181, 182, 183, 185, 186, 189, 223, 234 (42 U.S.C. 2133, 2134,
2167, 2169, 2201, 2231, 2232, 2233, 2235, 2236, 2239, 2273, 2282);
Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42
U.S.C. 5841, 5842, 5846, 5851); 44 U.S.C. 3504 note.
Sec. 52.55 [Amended]
0
2. In Sec. 52.55, amend paragraph (a) by removing the text ``15
years'', wherever it appears, and add, in its place, the text ``40
years''.
Sec. 52.57 [Amended]
0
3. In Sec. 52.57, amend paragraph (a) by removing the text ``15-
year'', wherever it appears, and add, in its place, the text ``40-
year''.
Sec. 52.61 [Amended]
0
4. In Sec. 52.61, remove the text ``15 years'', wherever it appears,
and add, in its place, the text ``40 years''.
Appendix A to Part 52 [Amended]
0
5. In appendix A to 10 CFR part 52, in section VII, remove the text
``15 years'', wherever it appears, and add, in its place, the text ``40
years''.
Appendix D to Part 52 [Amended]
0
6. In appendix D to 10 CFR part 52, in section VII remove the text ``20
years'', wherever it appears, and add, in its place, the text ``40
years''.
Appendix E to Part 52 [Amended]
0
7. In appendix E to 10 CFR part 52, in section VII remove the text ``15
years'', wherever it appears, and add, in its place, the text ``40
years''.
Appendix F to Part 52 [Amended]
0
8. In appendix F to 10 CFR part 52:
0
a. In section III.E, remove the word ``entirely'' wherever it appears,
and add, in its place, the word ``wholly''.
0
b. In section VII, remove the text ``15 years'', wherever it appears,
and add, in its place, the text ``40 years''.
Appendix G to Part 52 [Amended]
0
9. In appendix G to 10 CFR part 52, in section VII remove the text ``15
years'', wherever it appears, and add, in its place, the text ``40
years''.
For the Nuclear Regulatory Commission.
Dated: June 30, 2025.
Michael King,
Acting Executive Director for Operations.
[FR Doc. 2025-12396 Filed 7-1-25; 8:45 am]
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