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NRC Requests Comment on PRM to Define Criteria for SSCs and Functions that Are Important to Safety

The NRC is requesting public comment on a petition for rulemaking (PRM) that requests that the NRC amend 10 CFR 50.2, “Definitions,” to include a definition of the term “important to safety” and provide a set of specific criteria for determining which structures, systems, and components (SSCs) and functions are “important to safety.” The PRM is specifically concerned with determining which non-safety related SSCs can be categorized as “important to safety.” The NRC is requesting specific examples where the lack of a formal NRC definition directly resulted in adverse consequences to external stakeholders. It is also seeking comments regarding information and analysis that could provide the basis for a change in the regulations, what other regulations would have to be revised to reflect the new definition, the effect the new definition would have on the revised regulations, and potential guidance that would be needed to implement the new definition. Comments on the PRM are due by March 21, 2016.

To view the Federal Register entry, click here.