Closure Device

{
  "id": "MLC-T-ENV-005309",
  "term": "Closure Device",
  "field": "Environment",
  "definition": "Cap, hatch, lid, plug, seal, valve, or other type of fitting that, when the device is secured in the closed position, prevents or reduces air emissions to the atmosphere by blocking an opening in a fixed roof or floating roof. Closure devices include devices that are detachable from the cover (e.g., a sampling port cap), manually operated (e.g., a hinged access lid or hatch), or automatically operated (e.g., a spring-loaded pressure relief valve). [40 CFR 63.1041 (CFR 2013)] [40 CFR 63.961 (CFR 2013)] [40 CFR 63.941 (CFR 2013)]",
  "references": [
    "40 CFR 265.1081 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/closure-device/"
}