Applicability of Risk-Informed Categorization Regulation to Combined Licenses

The U.S. Nuclear Regulatory Commission (NRC) has received a petition for rulemaking from Michael D. Tschiltz, on behalf of the Nuclear Energy Institute (NEI or the petitioner), dated January 15, 2015, requesting that the NRC clarify the applicability of an NRC regulation to combined licenses (COLs). The NRC regulation allows structures, systems, and components (SSCs) of nuclear power reactors to be re-categorized based upon risk-informed considerations. Such re- categorization would result in changes in which NRC requirements would apply to those SSCs. The petition was docketed by the NRC on February 6, 2015, and has been assigned Docket No. PRM-50-110. The NRC is not requesting public comment on PRM-50-110 at this time.