The U.S. Nuclear Regulatory Commission (NRC) has released a final revision of Branch Technical Position 7-19, which provides guidelines to evaluate potential failures due to hidden design defects in digital safety systems. This update, part of the standard review plan for nuclear power plant safety reports, aims to enhance the defense in depth and diversity of these systems. The revised guidelines are effective as of January 29, 2021, and can be accessed online through the NRC's document management systems. This revision does not impose new regulatory requirements on nuclear power plants.
Simple Explanation
The U.S. Nuclear Regulatory Commission has updated its rules to help keep nuclear plants safe by checking for hidden problems in their technology systems, but they didn't make any new rules for plants to follow.