Letter Sequence Acceptance Review |
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MONTHYEARML25148A3942024-05-13013 May 2024
Enclosure 1, Japanese Competent Authority Certificate for the Model No. NT-XII (Docket No. 71-3104; CAC No. 001942; and EPID No. L-2025-DOT-0001)
Project stage: Other
ML25148A3972025-01-30030 January 2025
Enclosure 4, Affidavit, Request of Revalidation Recommendation, Model No. NT-XII (Docket No. 71-3104; CAC No. 001942; and EPID No. L-2025-DOT-0001)
Project stage: Other
ML25148A3962025-01-30030 January 2025
Enclosure 3, Safety Analysis Review for the Model No. NT-XII (Docket No. 71-3104; CAC No. 001942; and EPID No. L-2025-DOT-0001)
Project stage: Other
ML25148A3982025-02-10010 February 2025
Letter Dated 2/10/25 from DOT to NRC, Request of Revalidation Recommendation, Model No. NT-XII (Docket No. 71-3104; CAC No. 001942; and EPID No. L-2025-DOT-0001)
Project stage: Other
PMNS20250668, Meeting with Tennessee Valley Authority to Discuss a Proposed Alternative Request2025-06-0202 June 2025
Meeting with Tennessee Valley Authority to Discuss a Proposed Alternative Request
Project stage: Request
ML25160A1932025-06-12012 June 2025
Units 1 and 2 - Inservice Testing Alternative Request for Thermal Relief Valves Pre-Submittal Meeting Slides
Project stage: Request
ML25178B3892025-07-0202 July 2025
Summary of Public Teleconference with Tennessee Valley Authority to Discuss a Proposed Alternative Request Regarding Thermal Relief Valves
Project stage: Meeting
ML25234A1962025-08-0505 August 2025
Letter Dated August 5, 2025 from Adrian Rony (Edlow) to Dr. Ryan Vierling (Dot), Subject: Request for Priority Review for USA Validation of Japanese NT-XII Package
Project stage: Request
ML25223A3262025-08-11011 August 2025
Enclosure 1, Redacted, Safety Evaluation Report, Revalidation Recommendation for the Japanese Competent Authority Certificate No. J/2044/B(U)F, Model No. JMS-87Y-18.5T Package (Docket No. 71-3004)
Project stage: Approval
ML25238A1602025-08-26026 August 2025
Enclosure, Observations--Email Dated 8/26/25 from Ngarcia Santos (NRC) to Rvierling (Dot), Acceptance of Application, Revalidation of the Japanese Competent Authority Certificate No. J/2007/AF-96, Revision 0, Model No. NT-XII (Docket No. 71
Project stage: Acceptance Review
ML25238A1592025-08-26026 August 2025
Email Dated 8/26/25 from Ngarcia Santos (NRC) to Rvierling (Dot), Acceptance of Application, Revalidation of the Japanese Competent Authority Certificate No. J/2007/AF-96, Revision 0, Model No. NT-XII (Docket No. 71-3104)
Project stage: Acceptance Review
ML25253A4482025-09-10010 September 2025
Email Dated 9-10-25 from K. Cheng (DOT) to N. Garcia Santos (NRC) Related to Responses to Observation for the Application for the Revalidation of the Model No. NT-XII Package
Project stage: Request
ML25253A4712025-09-10010 September 2025
Approval of Withholding Information from Public Disclosure, Application for the Model No. NT-XII Package, Rev. 1, Docket No. 71-3104
Project stage: Other
ML25253A4472025-09-10010 September 2025
Affidavit Signed on 9-10-25 from Nuclear Fuel Industries Ltd, Responses to Observations for the Japanese Package Model No. NT-XII, Proprietary Information
Project stage: Other
ML26029A3332025-09-25025 September 2025
E-mail Dated 9-25-25 from Ngarcia (NRC) to Kcheng (DOT) Transmitting Requests for Additional information-prior to Shutdown, Model No. NT-XII, Docket No. 71-3104
Project stage: RAI
ML26029A3292025-10-0606 October 2025
Affidavit 10/6/25, Responses to Requests for Additional Information for the Revalidation of the Japanese CAC No. J/2007/AF-96, Revision 1, Model No. NT-XII Package, (Docket No. 71-3104, CoC No. 3104, Rev. No. 0)
Project stage: Response to RAI
ML26029A3342025-10-0909 October 2025
Transmittal Dated 10/9/25 from Nuclear Fuel Industries, Ltd., to DOT, Ref. NFK-MPCF-2510001-01, Related to the Responses the Requests for Additional Information for the Model No. NT-XII, Docket No. 71-3104
Project stage: Other
ML26029A3302025-11-14014 November 2025
E-mail Dated 11/14/25 from Kcheng (DOT) to Ngarcia (NRC) to Transmitting Responses to Requests for Additional Information for the Revalidation of the Model No. NT-XII, Docket No. 71-3104
Project stage: Response to RAI
ML25325A3442025-11-21021 November 2025
Enclosure 1, RAI Letter, RAI for the Revalidation Request of the Japanese Certificate of Competent Authority No. J/2007/AF, Revision 0, Model No. NT-XII (Cac/Epid 001942/L-2025-DOT-0001)
Project stage: RAI
ML25268A2852025-11-21021 November 2025
Letter, RAI for the Revalidation Request of the Japanese Certificate of Competent Authority No. J/2007/AF, Revision 0, Model No. NT-XII (Cac/Epid 001942/L-2025-DOT-0001)
Project stage: RAI
ML26044A2532026-02-13013 February 2026
Approval of Withholding Information from Public Disclosure, Application for the Model No. NT-XII Package, Rev. 1, Docket No. 71-3104, October 6, 2025
Project stage: Other
2025-06-12
[Table View] |
Text
Observations Model No. NT-XII Revision 0 Docket No. 71-3104 OBSERVATIONS General Information Obs-St-1 Table II-E-1 shows fuel volume in units of kg, which is mass instead of volume.
Obs-St-2 Table Figure II-E-1 includes a note water=polyethylene, however, Section E.3.1(2) states the following:
the impact absorber (polyethylene foam: 4.6 kg per fuel assembly) in the space was assumed to be uniformly distributed in the modeling.
Did they mean the figure note to say water & polyethylene?
Obs-St-3 The dimensions in the drawings include the thickness of the components respective outer shell. It is not clear whether the dimensions in the drawings are inner or outer. Table II-A-23 lists the total reduction due to the drop tests, but the applicant also applied a reduction in the component plate thickness. The staff was unable to reproduce the numbers in the criticality model.
Obs-St-4 Clarify that there is no air transport of the NT-XII package, thereby confirming that the 30 minute HAC fire results are appropriate for other analyses.
SAR HAC analyses and results (e.g., SAR section II.B.5.3) were based on temperatures from a 30 minute HAC fire. However, the effects (e.g., criticality) on the packaging and contents (e.g., fuel rods) may be different under a 60 minute HAC fire, which should be considered under air transport of fissile packages.
This information is needed to determine compliance with IAEA SSR-6 paragraphs 673, 736.