Performance Indicator

{
  "id": "MLC-T-ENV-020558",
  "term": "Performance Indicator",
  "field": "Environment",
  "definition": "The parameter or parameters you measure or observe for demonstrating proper operation of the pollution control measures or compliance with the applicable emissions limitation or standard. Indicators of performance may include direct or predicted emissions measurements (including opacity), operational parametric values that correspond to process or control device (and capture system) efficiencies or emissions rates, and recorded findings of inspection of work practice activities, materials tracking, or design characteristics. Indicators may be expressed as a single maximum or minimum value, a function of process variables (for example, within a range of pressure drops), a particular operational or work practice status (for example, a damper position, completion of a waste recovery task, materials tracking), or an interdependency between two or among more than two variables.",
  "references": [
    "40 CFR 63.2 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/performance-indicator/"
}