Nuclear Regulatory Commission January 6, 2016 – Federal Register Recent Federal Regulation Documents

The U.S. Nuclear Regulatory Commission (NRC) has received a petition for rulemaking (PRM) requesting that the NRC amend its ``Domestic licensing of production and utilization facilities'' regulations to define the term ``important to safety'' and provide a set of specific criteria for determining which structures, systems, components (SSCs), and functions are ``important to safety.'' The petition, dated July 20, 2015, was submitted by Kurt T. Schaefer (the petitioner) and was supplemented on August 31, 2015. The petition was docketed by the NRC on September 4, 2015, and was assigned Docket Number PRM-50-112. The NRC is examining the issues raised in this petition to determine whether it should be considered in rulemaking. The NRC is requesting public comments on this petition for rulemaking.

The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the Holtec International (``Holtec,'' or ``the applicant'') HI-STORM 100 Cask System listing within the ``List of Approved Spent Fuel Storage Casks'' to include Amendment No. 9, Revision 1, to Certificate of Compliance (CoC) No. 1014. Amendment No. 9, Revision 1, changes cooling time limits for thimble plug devices (TPDs), removes certain testing requirements for the fabrication of Metamic HT neutron-absorbing structural material, and reduces certain minimum guaranteed values (MGV) used in bounding calculations for this material. Amendment No. 9, Revision 1, also changes fuel definitions to classify certain boiling water reactor (BWR) fuel within specified guidelines as undamaged fuel.