Safety Significant Structures, Systems, or Components (Safety Significant SSCs)
Safety Significant Structures, Systems, or Components (Safety Significant SSCs) : (a) Nuclear facility structures, systems, or components not designated as Safety Class SSCs but whose preventative or mitigative function is a major contributor to defense in depth (i.e., prevention of uncontrolled material release) and/or worker safety as determined from hazard analysis. b. Non-nuclear facility structures, systems, or components whose preventative or mitigative function is a major contributor to defense in depth (i.e., prevention of uncontrolled material release) and/or worker safety as determined from hazard analysis, if a hazard analysis was performed. NOTE: Safety Significant SSC distinguishes a specific category of SSCs other than Safety Class SSCs. It should not be confused with the generic modifier "safety significant" used in DOE Orders
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