Models for Plant-Specific Adoption of Technical Specifications Task Force Traveler TSTF-535, Revision 0, “Revise Shutdown Margin Definition To Address Advanced Fuel Designs,” Using the Consolidated Line Item Improvement Process
The U.S. Nuclear Regulatory Commission (NRC) is announcing the availability of Technical Specifications (TSs) Task Force (TSTF) Traveler TSTF-535, Revision 0, ``Revise Shutdown Margin Definition to Address Advanced Fuel Designs,'' for plant-specific adoption using the Consolidated Line Item Improvement Process (CLIIP). Additionally, the NRC staff finds the proposed TS (Volume 1) and TS Bases (Volume 2) changes in Traveler TSTF-535 acceptable for inclusion in the following Standard Technical Specifications (STS): NUREG-1433, ``Standard Technical Specifications General Electric Plants BWR/4,'' and NUREG- 1434, ``Standard Technical Specifications General Electric Plants, BWR/ 6.''
Electric Power Research Institute; Seismic Evaluation Guidance
The U.S. Nuclear Regulatory Commission (NRC) is issuing an endorsement letter with clarifications of Electric Power Research Institute (EPRI)-1025287, ``Seismic Evaluation Guidance: Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic,'' Revision 0, hereafter referred to as the SPID report. This SPID report provides guidance and clarification of an acceptable approach to assist nuclear power reactor licensees when responding to the NRC staff's request for information dated March 12, 2012, Enclosure 1, ``Recommendation 2.1: Seismic.'' The NRC staff's endorsement letter includes additional clarifications on the: (1) Use of the Individual Plant Examination of External Events (IPEEE) submittals for screening purposes; (2) development of foundation input response spectra (FIRS) consistent with the site response used in the development of the site-specific ground motion response spectrum (GMRS); (3) updating the seismic source models; and (4) development of the site response.