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MONTHYEARML23272A2602023-09-29029 September 2023
Terrapower, LLC, Transmittal of Topical Report, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Revision 0
Project stage: Request
ML23352A2732023-12-18018 December 2023
NRR E-mail Capture - (External_Sender) Proposed Revised Schedule Terrapower TR (DBA) Methodology for In-Vessel Events Without Radiological Release (L-2023-TOP-0050)
Project stage: Other
ML24064A1952024-03-0505 March 2024
Public - Audit Plan - Terrapower - Design Basis Accident Methodology for In-Vessel Events Without Radiological Release - L-2023-TOP-0050
Project stage: Other
ML24145A0562024-05-22022 May 2024
Email - RAI Dates - Revised Schedule - Terrapower TR - (DBA) Methodology for In-Vessel Events Without Radiological Release (L-2023-TOP-0050)
Project stage: RAI
ML24326A3712024-11-26026 November 2024
Email: Request for Withholding from Public Disclosure - Terrapower, LLC Topical Report, NAT-9390, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Rev. 2,
Project stage: Other
ML24326A3702024-11-26026 November 2024
NRC Form 897: Request for Withholding from Public Disclosure - Terrapower, LLC Topical Report, NAT-9390, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Rev. 2
Project stage: Other
ML24255A0142024-11-27027 November 2024
Letter - Terrapower, LLC - Summary Report on the Regulatory Audit of Topical Report, TP-LIC-RPT-0004, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release Topical Report, Revision 0
Project stage: Other
ML24255A0172024-11-27027 November 2024
Enclosure (Public) - Terrapower, LLC - Summary Report on the Regulatory Audit of Topical Report, TP-LIC-RPT-0004, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release Topical Report, Revision 0
Project stage: Other
ML24358A2472024-12-23023 December 2024
Public - Terrapower, LLC - Draft Safety Evaluation for Natrium Topical Report NAT-9390, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Revision 2
Project stage: Draft Other
ML24274A3502024-12-23023 December 2024
Email - Terrapower, LLC - Draft Safety Evaluation (Public) of Topical Report, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Revision 2
Project stage: Draft Approval
ML25106A0432025-04-17017 April 2025
Public - Enclosure - Terrapower, LLC - Final Safety Evaluation of Topical Report NAT-9390, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Rev 2
Project stage: Approval
ML25106A0402025-04-17017 April 2025
Terrapower, LLC - Final Safety Evaluation of Topical Report NAT-9390, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release, Rev. 2
Project stage: Approval
ML25213A0342025-08-14014 August 2025
Email: Request for Withholding Proprietary Information from Public Disclosure - Terrapower, LLC, NAT-9390-A, Revision 2, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release
Project stage: Other
ML25212A0602025-08-14014 August 2025
Completed NRC Form 896 for -A Version Verification of Terrapower, LLC Topical Report NAT-9390, Revision 2, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release
Project stage: Other
ML25213A0332025-08-14014 August 2025
NRC 897: Request for Withholding Proprietary Information from Public Disclosure - Terrapower, LLC, NAT-9390-A, Revision 2, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release
Project stage: Other
ML25212A0612025-08-15015 August 2025
Email NRC Form 896, Terrapower, LLC Topical Report NAT-9390, Revision 2, Design Basis Accident Methodology for In-Vessel Events Without Radiological Release
Project stage: Other
2024-12-23
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Text
From:
Roel Brusselmans To:
George Wilson Cc:
Ian Gifford; Patrick Donnelly; Nick Kellenberger; Stephanie Devlin-Gill; Mallecia Sutton; Deion Atkinson
Subject:
TerraPower Topical Report Withholding Determinations Date:
Thursday, August 14, 2025 9:15:00 Attachments:
NRC 897 - DBA without release - ML25213A033.pdf NRC 897 - HFE - ML25213A024.pdf NRC 897 - Stability - ML25213A037.pdf
Attached you will find three withholding determinations from the NRC.
TerraPower, LLC NAT-9393-A, "Reactor Stability," Revision 0.
TerraPower, LLC NAT-2695-A, Human Factors Engineering Program Plan and Methodologies, Revision 1.
TerraPower, LLC NAT-9390-A, Design Basis Accident Methodology for In-Vessel Events without Radiological Release, Revision 2.
- Regards,
Roel
Roel Brusselmans Project Manager U.S. NRC, NRR, DANU, UAL1
- w. (301) 415-0829