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

Embedded Digital Devices In Safety-Related Systems
Document Number: 2016-10693
Type: Notice
Date: 2016-05-06
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing Regulatory Issue Summary (RIS) 2016-05, ``Embedded Digital Devices In Safety-Related Systems.'' This RIS clarifies the NRC staff's position on existing regulatory requirements for the quality and reliability of safety-related equipment with embedded digital devices. Furthermore, the purpose of this RIS is to raise awareness that there may be potential safety issues from a postulated common cause failure (CCF) if an undetected software error should occur in embedded digital devices located in multiple trains of redundant safety equipment in nuclear facilities.
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