Determining Which Structures, Systems, Components and Functions are Important to Safety

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.