List of Approved Spent Fuel Storage Casks: NAC International NAC-UMS Universal Storage System, Certificate of Compliance No. 1015, Amendment No. 9

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Nuclear Regulatory Commission 10 CFR Part 72 [NRC-2022-0049] RIN 3150-AK76 AGENCY: Nuclear Regulatory Commission. ACTION: Proposed rule. SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel regulations by revising the NAC International NAC-UMS Universal Storage System listing within the “List of approved spent fuel storage casks” to include Amendment No. 9 to Certificate of Compliance No. 1015. Amendment No. 9 revises the certificate of compliance to correct the effective thermal properties for pressurized-water reactor fuel assemblies used in the certification basis ANSYS thermal models and to update modeling assumptions. In addition, this rulemaking makes editorial corrections to Amendment No. 8. DATES: Submit comments by July 14, 2022. Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration only for comments received on or before this date. ADDRESSES: Submit your comments, identified by Docket ID NRC-2022-0049, at https://www.regulations.gov . If your material cannot be submitted using https://www.regulations.gov , call or email the individuals listed in the FOR FURTHER INFORMATION CONTACT section of this document for alternate instructions. For additional direction on obtaining information and submitting comments, see “Obtaining Information and Submitting Comments” in the SUPPLEMENTARY INFORMATION section of this document. FOR FURTHER INFORMA…