AGENCY:

Nuclear Regulatory Commission.

ACTION:

Direct final rule; confirmation of effective date.

SUMMARY:

The U.S. Nuclear Regulatory Commission (NRC) is confirming the effective date of September 14, 2026, for the direct final rule that was published in the Federal Register on July 1, 2026. This direct final rule amended the NAC MAGNASTOR System listing within the “List of approved spent fuel storage casks” to include Amendment Nos. 16 and 17 and revisions to Amendment Nos. 0 through 16 to Certificate of Compliance No. 1031.

DATES:

The effective date of September 14, 2026, for the direct final rule published July 1, 2026 (91 FR 39843), is confirmed.

ADDRESSES:

Please refer to Docket ID NRC-2026-2047 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: Electronically at www.regulations.gov. Search for Docket ID NRC-2026-2047. Address questions about NRC dockets to Helen Chang; telephone: 301-415-3228; email: Helen.Chang@nrc.gov. 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 www.nrc.gov/​reading-rm/​adams.html. To begin the search, select “Begin ADAMS Public 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 PDR.Resource@nrc.gov. Amendment Nos. 16 and 17 and revisions to Amendment Nos. 0 through 16 of Certificate of Compliance No. 1031, the associated changes to the technical specifications, and the safety evaluation reports are available in ADAMS under Package Accession No. ML26202A387.
• 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 PDR.Resource@nrc.gov 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:

Caylee Kenny, Office of Nuclear Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone: 301-415-7150, email: Caylee.Kenny@nrc.gov.