[Federal Register Volume 91, Number 63 (Thursday, April 2, 2026)]
[Rules and Regulations]
[Pages 16541-16546]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2026-06373]
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NUCLEAR REGULATORY COMMISSION
10 CFR Part 72
[NRC-2026-0562]
RIN 3150-AL66
List of Approved Spent Fuel Storage Casks: Holtec International
HI-STORM UMAX Canister Storage System, Certificate of Compliance No.
1040, Amendment No. 5
AGENCY: Nuclear Regulatory Commission.
ACTION: Direct final rule.
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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is amending its
spent fuel storage regulations by revising the Holtec International HI-
STORM UMAX Canister Storage System listing within the ``List of
approved spent fuel storage casks'' to include Amendment No. 5 to
Certificate of Compliance No. 1040. Amendment No. 5 revises the
certificate of compliance to include two new versions of the HI-STORM
UMAX design (Version B1 and B2).
DATES: This direct final rule is effective June 16, 2026, unless
significant adverse comments are received by May 4, 2026. If this
direct final rule is withdrawn as a result of such comments, timely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 a companion proposed
rule published in the Proposed Rules section of this issue of the
Federal Register.
ADDRESSES: Submit your comments, identified by Docket ID NRC-2026-0562,
at https://www.regulations.gov. If your material cannot be submitted
using https://www.regulations.gov, call or email the individual listed
in the FOR FURTHER INFORMATION CONTACT section of this document for
alternate instructions.
[[Page 16542]]
Do not include any personally identifiable information (such as
name, address, or other contact information) or confidential business
information that you do not want publicly disclosed. All comments are
public records; they are publicly displayed exactly as received, and
will not be deleted, modified, or redacted. Comments may be submitted
anonymously.
Follow the search instructions on https://www.regulations.gov to
view public comments.
You can read a plain language description of this direct final rule
at https://www.regulations.gov/docket/NRC-2026-0562. 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: Amy McKenna, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001; email: Amy [email protected].
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Obtaining Information and Submitting Comments
II. Rulemaking Procedure
III. Background
IV. Discussion of Changes
V. Voluntary Consensus Standards
VI. Agreement State Compatibility
VII. Plain Writing
VIII. Environmental Assessment and Finding of No Significant Impact
IX. Regulatory Planning and Review
X. Paperwork Reduction Act Statement
XI. Regulatory Flexibility Certification
XII. Regulatory Analysis
XIII. Backfitting and Issue Finality
XIV. Congressional Review Act
XV. Availability of Documents
I. Obtaining Information and Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC-2026-0562 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-2026-0562. Address
questions about NRC dockets to Helen Chang, telephone: 301-415-3228,
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]. For the convenience of the reader,
instructions about obtaining materials referenced in this document are
provided in the ``Availability of Documents'' section.
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.
B. Submitting Comments
The NRC encourages electronic comment submission through the
Federal rulemaking website (https://www.regulations.gov). Please
include Docket ID NRC-2026-0562 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
This rule is limited to the changes contained in Amendment No. 5 to
Certificate of Compliance No. 1040 and does not include other aspects
of the Holtec International HI-STORM UMAX Cask System design. The NRC
is using the ``direct final rule procedure'' to issue this amendment
because it represents a limited and routine change to an existing
certificate of compliance that is expected to be non-controversial.
Adequate protection of public health and safety continues to be
reasonably assured. The amendment to the rule will become effective on
June 16, 2026. However, if the NRC receives any significant adverse
comment on this direct final rule by May 4, 2026, then the NRC will
publish a document that withdraws this action and will subsequently
address the comments received in a final rule as a response to the
companion proposed rule published in the Proposed Rules section of this
issue of the Federal Register or as otherwise appropriate. In general,
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 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.
(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 to make a change (other than
editorial) to the rule, certificate of compliance, or technical
specifications.
III. Background
Section 218(a) of the Nuclear Waste Policy Act of 1982, as amended,
requires that ``[t]he Secretary [of the Department of Energy] shall
establish a demonstration program, in cooperation with the private
sector, for the dry storage of spent nuclear fuel at civilian nuclear
power reactor sites, with the objective of establishing one or more
technologies that the [Nuclear Regulatory] Commission may, by rule,
approve for use at the sites of civilian nuclear power reactors
without, to the maximum extent practicable, the need for additional
site-specific approvals by the Commission.'' Section 133 of the Nuclear
Waste Policy Act states, in part, that ``[t]he Commission shall, by
rule,
[[Page 16543]]
establish procedures for the licensing of any technology approved by
the Commission under Section 219(a) [sic: 218(a)] for use at the site
of any civilian nuclear power reactor.''
To implement this mandate, the Commission approved dry storage of
spent nuclear fuel in NRC-approved casks under a general license by
publishing a final rule that added a new subpart K in part 72 of title
10 of the Code of Federal Regulations (10 CFR) entitled ``General
License for Storage of Spent Fuel at Power Reactor Sites'' (55 FR
29181; July 18, 1990). This rule also established a new subpart L in 10
CFR part 72 entitled ``Approval of Spent Fuel Storage Casks,'' which
contains procedures and criteria for obtaining NRC approval of spent
fuel storage cask designs. The NRC subsequently issued a final rule on
March 6, 2015 (80 FR 12073), as corrected (80 FR 15679; March 25,
2015), that approved the Holtec International HI-STORM UMAX Canister
Storage System design and added it to the list of NRC-approved cask
designs in Sec. 72.214 as Certificate of Compliance No. 1040.
IV. Discussion of Changes
On December 14, 2023 (ML23348A302), Holtec International submitted
a request to the NRC to amend Certificate of Compliance No. 1040.
Holtec International supplemented its request on the following dates:
April 18, 2024 (ML24136A189), September 19, 2024 (ML24263A280), January
31, 2025 (ML25031A419), August 4, 2025 (ML25216A284), and October 6,
2025 (ML25279A207). Amendment No. 5 revises the certificate of
compliance to include two new versions of the HI-STORM UMAX design
(Version B1 and B2) with new lid features designed to enhance the
safety of the cask system by minimizing exposure of the canisters to
air with salt particles.
As documented in the preliminary safety evaluation report, the NRC
performed a safety evaluation of the proposed certificate of compliance
amendment request. The NRC determined that this amendment does not
reflect a significant change in design or fabrication of the cask.
Specifically, the NRC determined that the design of the cask would
continue to maintain confinement, shielding, and criticality control in
the event of each evaluated accident condition. In addition, any
resulting occupational exposure or offsite dose rates from the
implementation of Amendment No. 5 would remain well within the limits
specified by 10 CFR part 20, ``Standards for Protection Against
Radiation.'' Thus, the NRC found there will be no significant change in
the types or amounts of any effluent released, no significant increase
in the individual or cumulative radiation exposure, and no significant
increase in the potential for or consequences from radiological
accidents.
The NRC staff determined that the amended Holtec International HI-
STORM UMAX Canister Storage System cask design, when used under the
conditions specified in the certificate of compliance, the technical
specifications, and the NRC's regulations, will meet the requirements
of 10 CFR part 72; therefore, adequate protection of public health and
safety will continue to be reasonably assured. When this direct final
rule becomes effective, persons who hold a general license under Sec.
72.210 may, consistent with the license conditions under Sec. 72.212,
load spent nuclear fuel into Holtec International HI-STORM UMAX
Canister Storage System casks that meet the criteria of Amendment No. 5
to Certificate of Compliance No. 1040.
V. Voluntary Consensus Standards
The National Technology Transfer and Advancement Act of 1995 (Pub.
L. 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 revises the
Holtec International HI-STORM UMAX Canister Storage System cask design
listed in Sec. 72.214, ``List of approved spent fuel storage casks.''
This action does not constitute the establishment of a standard that
contains generally applicable requirements.
VI. Agreement State Compatibility
Under the ``Agreement State Program Policy Statement'' approved by
the Commission on October 2, 2017, and published in the Federal
Register on October 18, 2017 (82 FR 48535), this rule is classified as
Compatibility Category NRC--Areas of Exclusive NRC Regulatory
Authority. The NRC program elements in this category are those that
relate directly to areas of regulation reserved to the NRC by the
Atomic Energy Act of 1954, as amended, or the provisions of 10 CFR
chapter I. Therefore, compatibility is not required for program
elements in this category.
VII. 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).
VIII. Environmental Assessment and Finding of No Significant Impact
Under the National Environmental Policy Act of 1969, as amended,
and the NRC's regulations in 10 CFR part 51, ``Environmental Protection
Regulations for Domestic Licensing and Related Regulatory Functions,''
the NRC has determined that this direct final rule, if adopted, 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 has made a finding of no significant impact on
the basis of this environmental assessment. This environmental
assessment and finding of no significant impact can be tracked with
identification number NEPA ID EAXX-429-00-000-1770783521.
A. The Action
The action is to amend Sec. 72.214 to revise the Holtec
International HI-STORM UMAX Canister Storage System listing within the
``List of approved spent fuel storage casks'' to include Amendment No.
5 to Certificate of Compliance No. 1040.
B. The Need for the Action
This direct final rule amends the certificate of compliance for the
Holtec International HI-STORM UMAX Canister Storage System design
within the list of approved spent fuel storage casks to allow power
reactor licensees to store spent fuel at reactor sites in casks with
the approved modifications under a general license. Specifically,
Amendment No. 5 revises the certificate of compliance to include two
new versions of the HI-STORM UMAX design (Version B1 and B2).
C. Environmental Impacts of the Action
On July 18, 1990 (55 FR 29181), the NRC issued an amendment to 10
CFR part 72 to provide for the storage of spent fuel under a general
license in cask designs approved by the NRC. The potential
environmental impact of using NRC-approved storage casks was analyzed
in the environmental assessment for the 1990 final rule. The
environmental assessment for this Amendment No. 5 tiers off of the
environmental assessment for the July 18, 1990, final rule. Tiering on
past environmental assessments is a standard process under the National
[[Page 16544]]
Environmental Policy Act of 1969, as amended.
Holtec International HI-STORM UMAX Canister Storage System is
designed to mitigate the effects of design basis accidents that could
occur during storage. Design basis accidents account for human-induced
events and the most severe natural phenomena reported for the site and
surrounding area. Postulated accidents analyzed for an independent
spent fuel storage installation, the type of facility at which a holder
of a power reactor operating license would store spent fuel in casks in
accordance with 10 CFR part 72, can include tornado winds and tornado-
generated missiles, a design basis earthquake, a design basis flood, an
accidental cask drop, lightning effects, fire, explosions, and other
incidents.
This amendment does not reflect a significant change in design or
fabrication of the cask. Because there are no significant design or
process changes, any resulting occupational exposure or offsite dose
rates from the implementation of Amendment No. 5 would remain well
within the 10 CFR part 20 limits. The NRC has also determined that the
design of the cask as modified by this rule would maintain confinement,
shielding, and criticality control in the event of an accident.
Therefore, the proposed changes will not result in any radiological or
non-radiological environmental impacts that significantly differ from
the environmental impacts evaluated in the environmental assessment
supporting the July 18, 1990, final rule. There will be no significant
change in the types or significant revisions in the amounts of any
effluent released, no significant increase in the individual or
cumulative radiation exposures, and no significant increase in the
potential for, or consequences from, radiological accidents. The NRC
documented its safety findings in the preliminary safety evaluation
report.
D. Alternative to the Action
The alternative to this action is to deny approval of Amendment No.
5 and not issue the direct final rule. Consequently, any 10 CFR part 72
general licensee that seeks to load spent nuclear fuel into a Holtec
International HI-STORM UMAX Canister Storage System in accordance with
the changes described in proposed Amendment No. 5 would have to request
an exemption from the requirements of Sec. Sec. 72.212 and 72.214.
Under this alternative, interested licensees would have to prepare, and
the NRC would have to review, a separate exemption request, thereby
increasing the administrative burden upon the NRC and the costs to each
licensee. The environmental impacts would be the same as the proposed
action.
E. Alternative Use of Resources
Approval of Amendment No. 5 to Certificate of Compliance No. 1040
would result in no irreversible and irretrievable commitments of
Federal resources.
F. Agencies and Persons Contacted
No agencies or persons outside the NRC were contacted in connection
with the preparation of this environmental assessment.
G. Finding of No Significant Impact
The environmental impacts of the action have been reviewed under
the requirements in the National Environmental Policy Act of 1969, as
amended, and the NRC's regulations in subpart A of 10 CFR part 51,
``Environmental Protection Regulations for Domestic Licensing and
Related Regulatory Functions.'' Based on the foregoing environmental
assessment, the NRC concludes that this direct final rule, ``Holtec
International HI-STORM UMAX Canister Storage System, Certificate of
Compliance No. 1040, Amendment No. 5,'' will not have a significant
effect on the human environment. Therefore, the NRC has determined that
an environmental impact statement is not necessary for this direct
final rule.
XI. Regulatory Planning and Review
Executive Order (E.O.) 12866
Executive Order (E.O.) 12866, as amended by E.O. 14215, provides
that the Office of Information and Regulatory Affairs (OIRA) will
determine whether a regulatory action is significant as defined by E.O.
12866 and will review significant regulatory actions. OIRA determined
that this direct final rule is not a significant regulatory action
under E.O. 12866.
X. Paperwork Reduction Act Statement
This direct 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, approval number 3150-
0132.
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 Office of
Management and Budget control number.
XI. Regulatory Flexibility Certification
Under the Regulatory Flexibility Act of 1980 (5 U.S.C. 605(b)), the
NRC certifies that this direct final rule will not, if issued, have a
significant economic impact on a substantial number of small entities.
This direct final rule affects only nuclear power plant licensees and
Holtec International. These entities 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 (Sec.
2.810).
XII. Regulatory Analysis
On July 18, 1990 (55 FR 29181), the NRC issued an amendment to 10
CFR part 72 to provide for the storage of spent nuclear fuel under a
general license in cask designs approved by the NRC. Any nuclear power
reactor licensee can use NRC-approved cask designs to store spent
nuclear fuel if (1) it notifies the NRC in advance; (2) the spent fuel
is stored under the conditions specified in the cask's certificate of
compliance; and (3) the conditions of the general license are met. A
list of NRC-approved cask designs is contained in Sec. 72.214. On
March 6, 2015 (80 FR 12073), as corrected (80 FR 15679; March 25,
2015), the NRC issued an amendment to 10 CFR part 72 that approved the
Holtec International HI-STORM UMAX Canister Storage System by adding it
to the list of NRC-approved cask designs in Sec. 72.214.
On April 18, 2024 (ML24136A189), and as supplemented on September
19, 2024 (ML24263A280), January 31, 2025 (ML25031A419), August 4, 2025
(ML25216A284), and October 6, 2025 (ML25279A207) submitted a request to
amend the HI-STORM UMAX Canister Storage System as described in Section
IV, ``Discussion of Changes,'' of this document.
The alternative to this action is to withhold approval of Amendment
No. 5 and to require any 10 CFR part 72 general licensee seeking to
load spent nuclear fuel into a Holtec International HI-STORM UMAX
Canister Storage System under the changes described in Amendment No. 5
to request an exemption from the requirements of Sec. Sec. 72.212 and
72.214. Under this alternative, each interested 10 CFR part 72 licensee
would have to prepare, and the NRC would have to review, a separate
exemption request, thereby increasing the administrative burden upon
the NRC and the costs to each licensee.
[[Page 16545]]
Approval of this direct final rule is consistent with previous NRC
actions. Further, as documented in the preliminary safety evaluation
report and environmental assessment, this direct final rule will have
no adverse effect on public health and safety or the environment. This
direct final rule has no significant identifiable impact or benefit on
other government agencies. Based on this regulatory analysis, the NRC
concludes that the requirements of this direct final rule are
commensurate with the NRC's responsibilities for public health and
safety and the common defense and security. No other available
alternative is believed to be as satisfactory; therefore, this action
is recommended.
XIII. Backfitting and Issue Finality
The NRC has determined that the backfit rule (Sec. 72.62) does not
apply to this direct final rule. Therefore, a backfit analysis is not
required. This direct final rule revises Certificate of Compliance No.
1040 for the Holtec International HI-STORM UMAX Canister Storage
System, as currently listed in Sec. 72.214. The revision consists of
the changes in Amendment No. 5 previously described, as set forth in
the revised certificate of compliance and technical specifications.
Amendment No. 5 to Certificate of Compliance No. 1040 for the HI-
STORM UMAX Canister Storage System was initiated by Holtec
International and was not submitted in response to new NRC
requirements, or an NRC request for amendment. Amendment No. 5 applies
only to new casks fabricated and used under Amendment No. 5. These
changes do not affect existing users of the Holtec International HI-
STORM UMAX Canister Storage System, and the current Amendment No. 4
continues to be effective for existing users. While current users of
this storage system may comply with the new requirements in Amendment
No. 5, this would be a voluntary decision on the part of current users.
For these reasons, Amendment No. 5 to Certificate of Compliance No.
1040 does not constitute backfitting under Sec. 72.62 or Sec.
50.109(a)(1) or otherwise represent an inconsistency with the issue
finality provisions applicable to combined licenses in 10 CFR part 52.
Accordingly, the NRC has not prepared a backfit analysis for this
rulemaking.
XIV. Congressional Review Act
This direct final rule is not a rule as defined in the
Congressional Review Act.
XV. Availability of Documents
The documents identified in the following table are available to
interested persons as indicated.
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ADAMS accession No./Web link/
Document Federal Register citation
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Proposed Certificate of Compliance and Technical Specifications
Documents
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User Need Memo for Amendment No. 5 of ML26013A271
the Certificate of Compliance No.
1040 for the Holtec HI-STORM UMAX
Storage System.
Proposed CoC No. 1040, Amendment No. 5 ML26013A272
Proposed Technical Specifications for ML26013A273
CoC No. 1040, Amendment No. 5,
Appendix A.
Proposed Technical Specification for ML26013A274
CoC No. 1040, Amendment No. 5,
Appendix B.
Preliminary Safety Evaluation Report ML26013A275
for CoC No. 1040, Amendment No. 5.
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The NRC may post materials related to this document, including
public comments, on the Federal rulemaking website at https://www.regulations.gov under Docket ID NRC-2026-0562. In addition, the
Federal rulemaking website allows members of the public to receive
alerts when changes or additions occur in a docket folder. To
subscribe: (1) navigate to the docket folder (NRC-2026-0562); (2) click
the ``Subscribe'' link; and (3) enter an email address and click on the
``Subscribe'' link.
List of Subjects in 10 CFR Part 72
Administrative practice and procedure, Hazardous waste, Indians,
Intergovernmental relations, Nuclear energy, Penalties, Radiation
protection, Reporting and recordkeeping requirements, Security
measures, Spent fuel, Whistleblowing.
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; the Nuclear Waste Policy Act of 1982, as
amended; and 5 U.S.C. 552 and 553; the NRC is adopting the following
amendments to 10 CFR part 72:
PART 72--LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF
SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-
RELATED GREATER THAN CLASS C WASTE
0
1. The authority citation for part 72 continues to read as follows:
Authority: Atomic Energy Act of 1954, secs. 51, 53, 57, 62, 63,
65, 69, 81, 161, 182, 183, 184, 186, 187, 189, 223, 234, 274 (42
U.S.C. 2071, 2073, 2077, 2092, 2093, 2095, 2099, 2111, 2201, 2210e,
2232, 2233, 2234, 2236, 2237, 2238, 2273, 2282, 2021); Energy
Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C.
5841, 5842, 5846, 5851); National Environmental Policy Act of 1969
(42 U.S.C. 4332); Nuclear Waste Policy Act of 1982, secs. 117(a),
132, 133, 134, 135, 137, 141, 145(g), 148, 218(a) (42 U.S.C.
10137(a), 10152, 10153, 10154, 10155, 10157, 10161, 10165(g), 10168,
10198(a)); 44 U.S.C. 3504 note.
0
2. In Sec. 72.214, revise Certificate of Compliance No. 1040 to read
as follows:
Sec. 72.214 List of approved spent fuel storage casks.
* * * * *
Certificate Number: 1040.
Initial Certificate Effective Date: April 6, 2015, superseded by
Initial Certificate, Revision 1 Effective Date: April 21, 2025.
Amendment Number 1 Effective Date: September 8, 2015, superseded by
Amendment Number 1, Revision 1 Effective Date: April 21, 2025.
Amendment Number 2 Effective Date: January 9, 2017, superseded by
Amendment Number 2, Revision 1 Effective Date: April 21, 2025.
Amendment Number 3 Effective Date: [Reserved].
Amendment Number 4 Effective Date: January 25, 2021.
Amendment Number 5 Effective Date: June 16, 2026.
SAR Submitted by: Holtec International, Inc.
SAR Title: Final Safety Analysis Report for the Holtec
International HI-STORM UMAX Canister Storage System.
Docket Number: 72-1040.
[[Page 16546]]
Certificate Expiration Date: April 6, 2035.
Model Number: MPC-37, MPC-89.
* * * * *
Dated: March 20, 2026.
For the Nuclear Regulatory Commission.
Michael King,
Executive Director for Operations.
[FR Doc. 2026-06373 Filed 4-1-26; 8:45 am]
BILLING CODE 7590-01-P