List of Approved Spent Fuel Storage Casks: TN Americas LLC, NUHOMS® EOS Dry Spent Fuel Storage System, Certificate of Compliance No. 1042, Amendment No. 5

<RULE> NUCLEAR REGULATORY COMMISSION <CFR>10 CFR Part 72</CFR> <DEPDOC>[NRC-2025-1369]</DEPDOC> <RIN>RIN 3150-AL55</RIN> <SUBJECT>List of Approved Spent Fuel Storage Casks: TN Americas LLC, NUHOMS® EOS Dry Spent Fuel Storage System, Certificate of Compliance No. 1042, Amendment No. 5</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Nuclear Regulatory Commission. <HD SOURCE="HED">ACTION:</HD> Direct final rule. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the TN Americas LLC, NUHOMS® Extended Optimized Storage (EOS) Dry Spent Fuel Storage System listing within the “List of approved spent fuel storage casks” to include Amendment No. 5 to Certificate of Compliance (CoC) No. 1042. Amendment No. 5 revises the CoC to add a new heat load zone configuration (HLZC) for the EOS-37PTH canister, increasing the maximum heat load to 54 kW per dry shielded canister (DSC) for storage in the EOS-Horizontal Storage Module (HSM) and transfer using EOS-Transfer Casks (TC)125/135; clarifies acceptance criteria for minor surface imperfections on high strength low-alloy (HSLA) basket plates in the Updated Final Safety Analysis Report (UFSAR); and makes editorial updates to the UFSAR and Technical Specification (TS) revisions to align with Amendment No. 4, improve readability, and correct code references. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This direct final rule is effective April 13, 2026, unless significant adverse comments are received by February 27, 2026. If this direct final rule is withdrawn as a result of such comments, timely notice of the withdrawal will be published in the <E T="04">Federal Register</E> . Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration of only comments received on or before this date. Comments received on this direct final rule will also be conside [... Content truncated for display. Full text is stored and available for diff comparison ...]