[Federal Register Volume 91, Number 104 (Monday, June 1, 2026)]
[Rules and Regulations]
[Page 32324]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2026-10935]


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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; confirmation of effective date.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is confirming the 
effective date of June 16, 2026, for the direct final rule that was 
published in the Federal Register on April 2, 2026. This direct final 
rule amended 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.

DATES: 
    Effective date: The effective date of June 16, 2026, for the direct 
final rule published April 2, 2026 (91 FR 16541), is confirmed.

ADDRESSES: 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: Electronically at https://www.regulations.gov. 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]. Amendment No. 5 of Certificate of Compliance 
No. 1040, the associated changes to the technical specifications, and 
the safety evaluation report are available in ADAMS under Package 
Accession No. ML26128A289.
     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.

FOR FURTHER INFORMATION CONTACT: Amy McKenna, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001; email: [email protected].

SUPPLEMENTARY INFORMATION: On April 2, 2026 (91 FR 16541), the NRC 
published a direct final rule amending its regulations in part 72, 
``Packaging and Transportation of Radioactive Material,'' of title 10 
of the Code of Federal Regulations to revise the certificate of 
compliance to include two new versions of the HI-STORM UMAX (Version B1 
and B2). In the direct final rule, the NRC stated that if no 
significant adverse comments were received, the direct final rule would 
become effective on June 16, 2026.
    The NRC received and docketed one comment on the companion proposed 
rule (91 FR 16588; April 2, 2026). An electronic copy of the comment 
can be obtained from the Federal Rulemaking website at https://www.regulations.gov under Docket ID NRC-2026-0562 and is also available 
in ADAMS under Accession No. ML26146A078. The NRC evaluated the comment 
against the criteria described in the direct final rule and determined 
that the comment was not significant and adverse. Therefore, this 
direct final rule will become effective as scheduled.

    Dated: May 28, 2026.

    For the Nuclear Regulatory Commission.
Krupskaya Castellon,
Acting Chief, Regulatory Analysis and Rulemaking Support Branch, 
Division of Rulemaking, Environmental, and Financial Support, Office of 
Nuclear Material Safety and Safeguards.
[FR Doc. 2026-10935 Filed 5-29-26; 8:45 am]
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