Nuclear Regulatory Commission March 26, 2007 – Federal Register Recent Federal Regulation Documents

Notice is hereby given that the staff of the Nuclear Regulatory Commission (NRC) has prepared a model Application related to changes to the Standard Technical Specifications (STS), Section 3.7.5 (STS 3.7.4 for BWR/6), ``Control Room Air Conditioning (AC) System'' for NUREG-1433 (BWR/4) and NUREG-1434 (BWR/6), Rev. 3.0. The changes add an Action Statement to Limiting Condition for Operation (LCO) (LCO 3.7.5 for BWR/4 and LCO 3.7.4 for BWR/6). The new Action Statement allows a finite time to restore one control room AC subsystem to operable status and requires verification that control room temperature remains < 90[deg]F every 4 hours. The proposed changes would also revise the Bases for STS 3.7.5 (STS 3.7.4 for BWR/6). The NRC staff has also prepared a model safety evaluation (SE) and no significant hazards consideration (NSHC) determination relating to this matter. The purpose of these models is to permit the NRC to efficiently process amendments that propose to adopt the associated changes into plant-specific technical specifications (TS). Licensees of nuclear power reactors to which the models apply may request amendments confirming the applicability of the SE and NSHC determination to their reactors.