Barrier Integrity

The objective of the Barrier Integrity cornerstone is to provide reasonable assurance that the physical design barriers protect the public from radionuclide releases caused by accidents. Licensees can reduce the effects of reactor accidents if they do occur by maintaining the integrity of the barriers. The barriers are the fuel cladding, reactor coolant system (RCS) boundary, and the containment.

Strategic Area	Cornerstone	Performance Indicator
Reactor Safety	Initiating Events	Unplanned Scram Unplanned Power Change Unplanned Scrams with Complication
	Mitigating Systems	Safety System Functional Failure Emergency AC Power System High Pressure Injection System Heat Removal System Residual Heat Removal System Cooling Water System
	Barrier Integrity	Reactor Coolant System (RCS) Activity Reactor Coolant System (RCS) Leakage
	Emergency Preparedness	Drill/Exercise Performance Emergency Response Organization (ERO) Drill Participation Alert and Notification System Reliability
Radiation Safety	Public Radiation Safety	Radiological Effluent Technical Specifications/Offsite Dose Calculation Manual (RETS/ODCM)
	Occupational Radiation Safety	Occupational Exposure Control Effectiveness
Safeguards	Physical Protection	Security PI