Existing Stack

{
  "id": "MLC-T-ENV-010357",
  "term": "Existing Stack",
  "field": "Environment",
  "definition": "That the owner or operator had (1) begun, or caused to begin, a continuous program of physical on-site construction of the stack or (2) entered into binding agreements or contractual obligations, which could not be cancelled or modified without substantial loss to the owner or operator, to undertake a program of construction of the stack to be completed within a reasonable time.",
  "references": [
    "40 CFR 51.100 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/existing-stack/"
}