[Federal Register Volume 88, Number 115 (Thursday, June 15, 2023)]
[Rules and Regulations]
[Pages 39119-39120]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-12709]


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NUCLEAR REGULATORY COMMISSION

10 CFR Part 72

[NRC-2023-0050]
RIN 3150-AK93


List of Approved Spent Fuel Storage Casks: TN Americas LLC, 
NUHOMS[supreg] EOS Dry Spent Fuel Storage System Certificate of 
Compliance No. 1042, Amendment No. 3

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 July 17, 2023, for the direct final rule that was 
published in the Federal Register on May 2, 2023. The direct final rule 
amended the TN Americas LLC, NUHOMS[supreg] EOS Dry Spent Fuel Storage 
System listing within the ``List of approved spent fuel

[[Page 39120]]

storage casks'' to include Amendment No. 3 to Certificate of Compliance 
No. 1042.

DATES: The effective date of July 17, 2023, for the direct final rule 
published May 2, 2023 (88 FR 27397), is confirmed.

ADDRESSES: Please refer to Docket ID NRC-2023-0050 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-2023-0050. Address 
questions about NRC dockets to Dawn Forder; telephone: 301-415-3407; 
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 Web-based ADAMS 
Search.'' For problems with ADAMS, please contact the NRC's Public 
Document Room (PDR) reference staff at 1-800-397-4209, 301-415-4737, or 
by email to [email protected]. The Amendment No. 3 of certificate of 
compliance No. 1042 and associated changes to the technical 
specifications, and safety evaluation report can also be viewed in 
ADAMS under Package Accession No. ML23137A409.
     NRC's PDR: You may examine and purchase copies of public 
documents, by appointment, at the NRC's PDR, Room P1 B35, One White 
Flint North, 11555 Rockville Pike, Rockville, Maryland 20852. 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 
8:00 a.m. and 4:00 p.m. eastern time, Monday through Friday, except 
Federal holidays.

FOR FURTHER INFORMATION CONTACT: Caylee Kenny, Office of Nuclear 
Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001; telephone: 301-415-7150, email: 
[email protected].

SUPPLEMENTARY INFORMATION: On May 2, 2023 (88 FR 27397), 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 TN Americas 
LLC, NUHOMS[supreg] EOS Dry Spent Fuel Storage System listing within 
the ``List of approved spent fuel storage casks'' to include Amendment 
No. 3 to Certificate of Compliance No. 1042.
    Amendment No. 3 revises the certificate of compliance to: add three 
new heat load zone configurations (HLZCs) for the EOS-89BTH Dry 
Shielded Canister (DSC) with increased heat load up to 1.7 kW per fuel 
assembly, which reduces the minimum cooling time to 1 year; add a 
variable-lead thickness EOS-TC125 for transfer with the EOS-89BTH DSC; 
add ATRIUM 11 fuel as an allowable content in the EOS-89BTH DSC and 
rerun the limiting GNF2 and ABB-10-C cases to reduce the statistical 
uncertainties and increase the enrichment limits; update the 
criticality evaluation to allow short-loading the EOS-89BTH DSC with 
less than 89 fuel assemblies to increase the enrichment limits; revise 
the technical specifications (TS) to allow for phased array automated 
ultrasonic testing and to utilize a single pass high amperage gas 
tungsten arc weld or multipass gas tungsten arc weld on the outer top 
cover plate; revise the TS to reduce EOS-37PTH HLZC 1 and 2 time limit 
for transfer to eight hours; incorporate a method to determine new 
loading patterns based on the maximum allowable heat load per DSC and 
per location specified in the TS and move all HLZCs and time limits for 
transfer for the EOS-89BTH DSC transferred in the EOS-TC125 from the 
technical specifications to Updated Final Safety Analysis Report 
(UFSAR) Chapter 2; waive the fabrication pressure test requirement for 
the single bottom forging EOS-DSCs; and make minor changes to TS and 
UFSAR for consistency among DSC types and terminology clarification. 
Amendment No. 3 also revises the certificate of compliance with three 
scope changes including: UFSAR revisions associated with transfer cask 
lifting heights and consideration of severe weather; UFSAR revisions 
associated with maintaining water in the annulus; and design changes to 
the Matrix Loading Crane.
    In the direct final rule, the NRC stated that if no significant 
adverse comments were received, the direct final rule would become 
effective on July 17, 2023. The NRC did not receive any comments on the 
direct final rule. Therefore, this direct final rule will become 
effective as scheduled.

    Dated: June 9, 2023.

    For the Nuclear Regulatory Commission.
Krupskaya T. 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. 2023-12709 Filed 6-14-23; 8:45 am]
BILLING CODE 7590-01-P