The U.S. Nuclear Regulatory Commission (NRC) has issued three Interim Staff Guidance (ISG) documents to update the aging management criteria for mechanical, structural, and electrical components in their subsequent license renewal (SLR) guidance documents. These ISGs update NUREG-2191 and NUREG-2192, which help with the preparation and review of license renewal applications for nuclear power plants. The revisions include updates to recommended aging management programs, changes to review items, and new guidance sections. These guidelines are aimed at clarifying the existing instructions and easing the application process for SLRs.
Simple Explanation
The U.S. Nuclear Regulatory Commission has made new rules to help keep old nuclear power plants safe for longer. These updates tell people how to take care of the parts of the plant that might wear out as they get older.