Excess Emissions Conditions

{
  "id": "MLC-T-ENV-010253",
  "term": "Excess Emissions Conditions",
  "field": "Environment",
  "definition": "1. Some sources are unable to comply with their emissions limits during startup and shutdown. Excess emissions may also result if process equipment or pollution control equipment breaks down. Some regulators have tried to address these situations through the adoption of rules that give special treatment to sources under such circumstances. These rules are usually called \"excess emissions rules\" or \"startup/shutdown rules\" and, if properly written, only apply in situations where it is technologically impossible for the source to comply, or where circumstances beyond the source's control cause it to exceed its emissions limits.\n\n2. In addition to the emergency provisions of Part 70, permits will sometimes contain excess emissions provisions. Where these provisions are based on federally promulgated standards or are derived from state standards approved by EPA (approved SIP rules), it is ok to include them in the Title V permit. If, however, the permit condition is based on a rule that has not been approved or promulgated by EPA, it should not be included in the permit.",
  "subject": "Air",
  "references": [
    "Air Permitting Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/excess-emissions-conditions/"
}