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

Document 2026-01647 is a Final Rule published by the Nuclear Regulatory Commission in the Federal Register on January 28, 2026, with an effective date of April 13, 2026. The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the TN Americas LLC, NUHOMS[supreg] 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. View the original at https://www.federalregister.gov/documents/2026/01/28/2026-01647/list-of-approved-spent-fuel-storage-casks-tn-americas-llc-nuhoms-eos-dry-spent-fuel-storage-system.

No. Document 2026-01647 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.