[Federal Register Volume 90, Number 84 (Friday, May 2, 2025)]
[Rules and Regulations]
[Pages 18769-18770]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-07602]



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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. 84 / Friday, May 2, 2025 / Rules and 
Regulations

[[Page 18769]]



NUCLEAR REGULATORY COMMISSION

10 CFR Part 72

[NRC-2024-0216]
RIN 3150-AL25


List of Approved Spent Fuel Storage Casks: NAC International, 
Inc., MAGNASTOR[supreg] Storage System, Certificate of Compliance No. 
1031, Amendment No. 15

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 3, 2025, for the direct final rule that was 
published in the Federal Register on March 20, 2025. This direct final 
rule amended the NAC International, Inc., MAGNASTOR[supreg] Storage 
System listing within the ``List of approved spent fuel storage casks'' 
to include Amendment No. 15 to Certificate of Compliance No. 1031.

DATES: Effective date: The effective date of June 3, 2025, for the 
direct final rule published March 20, 2025 (90 FR 13047), is confirmed.

ADDRESSES: Please refer to Docket ID NRC-2024-0216 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-2024-0216. 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.
     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]. The revision of Certificate of 
Compliance No. 1031, the associated changes to the technical 
specifications, and the final safety evaluation report are available in 
ADAMS under Accession No. ML25112A096. The public comment is available 
in ADAMS under Accession No. ML25090A040.
     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: Irene Wu, Office of Nuclear Material 
Safety and Safeguards, telephone: 301-415-1951, email: [email protected] 
and Nishka Devaser, Office of Nuclear Material Safety and Safeguards, 
telephone: 301-415-5196, email: [email protected]. Both are staff 
of the U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.

SUPPLEMENTARY INFORMATION: On March 20, 2025 (90 FR 13047), the NRC 
published a direct final rule amending its regulations in part 72 of 
title 10 of the Code of Federal Regulations to revise the NAC 
International, Inc. MAGNASTOR[supreg] Storage System listing within the 
``List of approved spent fuel storage casks'' to include Amendment No. 
15. Amendment No. 15 revises the certificate of compliance to add a new 
variation of the Lightweight MAGNASTOR[supreg] Transfer Cask design, 
add a new concrete cask design, increase the maximum system heat load 
capacity, add new loading patterns, add a thermal shunt for short 
loading patterns, remove the 5 percent burnup penalty, increase Passive 
MAGNASTOR[supreg] Transfer Cask heat load, add two new pressurized-
water reactor fuel types to support future operations, modify the 
transportable storage canister lid to allow additional clearance near 
the top center of the basket, and correct and clarify principal design 
criteria, operating procedures, and the acceptance criteria and 
maintenance program. This amendment also makes corresponding revisions 
to previously approved drawings for the concrete cask, Technical 
Specifications Appendix A and Appendix B, specific chapters of the 
final safety analysis report, and several license drawings.
    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 3, 2025. The NRC received and docketed one comment on 
the companion proposed rule (90 FR 13103; March 20, 2025). An 
electronic copy of the comment can be obtained from the Federal 
Rulemaking website at https://www.regulations.gov under Docket ID NRC-
2024-0216 and is also available in ADAMS under Accession No. 
ML25090A040. Specifically, the comment concerned the issue of the casks 
being able to withstand high temperatures and the issue of preventing 
leaks occurring at the site. The NRC evaluated the comment against the 
criteria described in the direct final rule and determined that the 
public comment received on this action did not warrant any additions or 
changes to the final rule, the certificate of compliance, or the 
accompanying technical specifications. The NRC is not making 
substantive changes to the rule; it is apparent that the rule is 
effective and acceptable as proposed, without the need for a 
substantive change or addition. The comment did not raise a relevant 
issue that was not previously addressed or considered by the NRC, and 
the comment did not cause the NRC to either (1) reevaluate or 
reconsider its position, or (2) conduct additional analyses. The NRC 
has determined that the comment was not a significant adverse comment 
and therefore, this direct final rule will become effective as 
scheduled.

    Dated: April 28, 2025.


[[Page 18770]]


    For the Nuclear Regulatory Commission.
Ronald Raunikar,
Acting Chief, Regulatory Analysis and Rulemaking Support Branch, 
Division of Rulemaking, Environmental, and Financial Support, Office of 
Nuclear Material Safety and Safeguards.
[FR Doc. 2025-07602 Filed 5-1-25; 8:45 am]
BILLING CODE 7590-01-P