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الطاقة والبيئة · 16‏/9‏/20031 دقائق للقراءة

Geological and Seismological Characteristics for Siting and Design of Dry Cask Independent Spent Fuel Storage Installations and Monitored Retrievable Storage Installations

ترجمة آلية محلية · اللغة الأصلية للمصدر

الملخص

The Nuclear Regulatory Commission (NRC) is amending its licensing requirements for dry cask modes of storage of spent nuclear fuel, high-level radioactive waste, and power reactor-related Greater than Class C (GTCC) waste in an independent spent fuel storage installation (ISFSI) or in a U.S. Department of Energy (DOE) monitored retrievable storage installation (MRS). These amendments update the seismic siting and design criteria, including geologic, seismic, and earthquake engineering considerations. The final rule allows the NRC and its licensees to benefit from experience gained in the licensing of existing facilities and to incorporate rapid advancements in the earth sciences and earthquake engineering. The amendments make the NRC regulations that govern certain ISFSIs and MRSs more compatible with the 1996 amendments that addressed uncertainties in seismic hazard analysis for nuclear power plants. The amendments allow certain ISFSI or MRS applicants to use a design earthquake level commensurate with the risk associated with an ISFSI or MRS.

اللغة الأصلية للمصدر: Federal Register — Nuclear Regulatory Commissionافتح البيان الأصلي →

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الطاقة والبيئة · 28‏/8‏/2026

Southern Nuclear Operating Company; Vogtle Electric Generating Plant Units 1 & 2; Independent Spent Fuel Storage Installation; Exemption

The U.S. Nuclear Regulatory Commission (NRC) has issued a one- time exemption to Southern Nuclear Operating Company (SNC), authorizing Vogtle Electric Generating Plant Units 1 and 2 (Vogtle 1 and 2) to retain a single Neutron Source Assembly (NSA) in its current storage cell within a multi-purpose canister ((MPC-32), serial number MPC-707) at the Vogtle Independent Spent Fuel Storage Installation, in a manner that is inconsistent with the loading restrictions specified in Certificate of Compliance (CoC) No. 1014, Amendment 11, for the HI- STORM 100S Version B dry storage system. The exemption allows the NSA to remain in a peripheral basket cell, contrary to Appendix B, Table 2.1-1, which restricts NSA containing assemblies to designated interior cells. The NRC's determination is based on SNC's safety evaluation and supporting analyses demonstrating that the configuration continues to meet applicable safety requirements for criticality control, shielding, thermal performance, structural integrity, and confinement.

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الطاقة والبيئة · 27‏/8‏/2026

NextEra Energy, Inc.; Dominion Energy, Inc.; Virginia Electric and Power Company; Dominion Energy Nuclear Connecticut; Dominion Energy South Carolina, Inc.; Surry Power Station, Unit Nos. 1 and 2; North Anna Power Station, Unit Nos. 1 and 2; Virgil C. Summer Nuclear Station, Unit 1; Millstone Power Station, Units 1, 2, & 3; North Anna Unit 3; North Anna Early Site Permit; and the Associated Independent Spent Fuel Storage Installations; Consideration of Approval of Transfer of Licenses

The U.S. Nuclear Regulatory Commission (NRC) received and is considering approval of an application filed by NextEra Energy, Inc. (NextEra Energy), Dominion Energy, Inc. (Dominion Energy), Virginia Electric and Power Company (VEPCO), Dominion Energy Nuclear Connecticut (DENC), and Dominion Energy South Carolina, Inc. (DESC) (collectively the Applicants) on July 15, 2026. The application seeks NRC approval of the indirect transfer of the facility operating licenses, materials licenses, and general licenses for Surry Power Station, Unit Nos. 1 and 2 (Surry); North Anna Power Station, Unit Nos. 1 and 2 (North Anna); Virgil C. Summer Nuclear Station, Unit 1 (V.C. Summer); and Millstone Power Station, Units 1, 2, & 3 (Millstone); as well as the combined license for North Anna Unit 3; and the North Anna Early Site Permit. The application contains sensitive unclassified non-safeguards information (SUNSI).

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الطاقة والبيئة · 26‏/8‏/2026

List of Approved Spent Fuel Storage Casks: TN Americas, LLC Standardized NUHOMS® Horizontal Modular Storage System for Irradiated Nuclear Fuel, Certificate of Compliance No. 1004, Renewed Amendment No. 19

The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel regulations by revising the TN Americas, LLC Standardized NUHOMS[supreg] Horizontal Modular Storage System for Irradiated Nuclear Fuel listing within the "List of approved spent fuel storage casks" to include Renewed Amendment No. 19 to Certificate of Compliance (CoC) No. 1004. The NRC is referring to this amendment as "Renewed Amendment No. 19" because it was submitted after the renewal of the TN Americas, LLC Standardized NUHOMS Horizontal Modular Storage System for Irradiated Nuclear Fuel Certificate of Compliance No. 1004 and, therefore, subject to the Aging Management Program requirements of the renewed certificate. Renewed Amendment No. 19 would amend the certificate of compliance to provide for a 61BTH improved basket design using staggered plates similar the 24PTH Type 3 basket approved in CoC 1004 Amendment 18 and similar to the EOS 37PTH and 89BTH baskets approved in CoC 1042. This would simplify construction, reduce weight and improve fabricability. Additional changes are proposed to address editorial corrections, consistency, and terminology clarifications.

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الطاقة والبيئة · 10‏/9‏/2026

In Situ Recovery Monitoring and Decommissioning Timeliness

The U.S. Nuclear Regulatory Commission (NRC) proposes to amend its regulations that govern the licensing of uranium mills and the disposition of tailings and waste that arise from the extraction and milling of uranium by issuing risk-informed requirements for groundwater protection at uranium in situ recovery (ISR) facilities. The NRC's current regulations are focused on conventional uranium milling and do not expressly address uranium extraction by the ISR process. Additionally, NRC proposes to amend its regulations that govern decommissioning timeliness for all licensees to provide additional flexibility for licensees to delay the initiation of decommissioning activities in situations where safety would not be impacted.

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الطاقة والبيئة · 21‏/8‏/2026

Draft Regulatory Guide: Assessing Public Health Risk Associated With Chemical Hazards of Licensed Material

The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment a draft Regulatory Guide (DG), DG-1444, proposed Regulatory Guide (RG) 1.264, "Assessing Public Health Risk Associated with Chemical Hazards of Licensed Material." This DG describes a methodology that is acceptable to the staff of the NRC to meet regulatory requirements assessing public health risk associated with chemical hazards of licensed material.

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الطاقة والبيئة · 21‏/8‏/2026

Advisory Committee on the Medical Uses of Isotopes: Meeting Notice

The U.S. Nuclear Regulatory Commission (NRC) will convene a meeting of the Advisory Committee on the Medical Uses of Isotopes (ACMUI) on September 9, 2026, to discuss and provide recommendations from the subcommittee on reducing barriers to medical use licensing rulemaking. Topic is tentative based on its rulemaking schedule. Meeting information, including a copy of the agenda and handouts, will be available on the ACMUI's Meetings and Related Documents web page at https://www.nrc.gov/reading-rm/doc- collections/acmui/meetings/2026 or by emailing Ms. Sarah Hoenig at the contact information below.

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