Daily Rules, Proposed Rules, and Notices of the Federal Government
TSTF-522, Revision 0, is applicable to all nuclear reactor power plants. The proposed change revises the surveillance requirements (SRs) which currently require operating the ventilation system for at least 10 continuous hours with the heaters operating every 31 days or at a frequency controlled in accordance with the surveillance frequency control program (SFCP). The SRs would be changed to require at least 15 continuous minutes of ventilation system operation with heaters operating every 31 days or at a frequency controlled in accordance with the SFCP.
The NRC staff has reviewed the model application for TSTF-522 and has found it acceptable for use by licensees. Licensees opting to apply for this TS change are responsible for reviewing the NRC's staff SE and the applicable technical bases, providing any necessary plant-specific information, and assessing the completeness and accuracy of their license amendment request (LAR). The NRC will process each amendment application responding to the Notice of Availability according to applicable NRC rules and procedures.
The proposed change does not prevent licensees from requesting an alternate approach or proposing changes other than those proposed in TSTF-522, Revision 0. However, significant deviations from the approach recommended in this notice or the inclusion of additional changes to the license will require additional NRC staff review. This may increase the time and resources needed for the review or result in NRC staff rejection of the LAR. Licensees desiring significant deviations or additional changes should instead submit an LAR that does not claim to adopt TSTF-522, Revision 0.
For the Nuclear Regulatory Commission.