Nuclear Regulatory Commission July 13, 2012 – Federal Register Recent Federal Regulation Documents

The U.S. Nuclear Regulatory Commission (NRC or the Commission) requests public comment on Draft License Renewal Interim Staff Guidance (LR-ISG), LR-ISG-2012-01, ``Wall Thinning Due to Erosion Mechanisms.'' The draft LR-ISG proposes to revise an NRC staff-recommended aging management program (AMP) in NUREG-1801, Revision 2, ``Generic Aging Lessons Learned (GALL) Report,'' and the NRC staff's aging management review procedure and acceptance criteria contained in NUREG-1800, Revision 2, ``Standard Review Plan for Review of License Renewal Applications for Nuclear Power Plants'' (SRP-LR) to address wall thinning due to various erosion mechanisms for piping and components within the scope of the Requirements for Renewal of Operating Licenses for Nuclear Power Plants. This LR-ISG provides changes to the recommendations in GALL Report, Revision 2, AMP XI.M17, ``Flow- Accelerated Corrosion,'' based on the staff's review of several license renewal applications' flow-accelerated corrosion AMPs and stakeholder input.