Report a Safety Concern
Search

The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Home Nuclear Reactors Operating Reactors Reactor Oversight Process (ROP)

Performance Indicators

subscribe to page updates

icon/hyperlink for: Performance Indicators page, consisting of a medium-blue circle with light green outline, and in the center is a white image of a speedometer guage with its needle pointing over to the high end of the scale.A quantitative measure of a particular attribute of licensee performance that shows how well a plant is performing when measured against established thresholds.  Licensees submit their data quarterly; the NRC regularly conducts inspections to verify the submittals and then uses its own inspection data plus the licensees' submittals to assess each plants performance.

Key Topics

Related Information

Plants IE
01		 IE
03		 IE
04		 MS
05		 MS
06		 MS
07		 MS
08		 MS
09		 MS
10		 BI
01		 BI
02		 EP
01		 EP
02		 EP
03		 EP
04		 OR
01		 PR
01		 PP
01
Legend
R=Red  W=White  GTG=Greater Than Green I=Insufficient Data to Calculate PI  U=Unique Design
Y=Yellow  G=Green  T=Thresholds under development N=Not Applicable  D=Descrepant
 
IE01   = Unplanned Scrams per 7000 Critical Hours MS05 = Safety System Functional Failures
IE03   = Unplanned Power Changes MS07 = High Pressure Injection System
MS06 = Emergency AC Power System MS09 = Residual Heat Removal System
MS10 = Heat Removal System BI01   = Reactor Coolant System Specific Activity
BI02   = Reactor Coolant System Leak EP01  = Drill/Exercise Performance
EP02  = ERD Drill Participation EP04  = Emergency Response Facility and Equipment
OR01 = Occupational Exposure Control Effectiveness PP01  = Protected Area Equipment
IE04   = Unplanned Scrams with Complications PR01  = RETS/ODCM Radiological Effluent
   

Page Last Reviewed/Updated Monday, April 21, 2025