Aircraft hazard area (AHA)

{
  "id": "MLC-T-AVN-000057",
  "term": "Aircraft hazard area (AHA)",
  "field": "Aviation and air traffic control",
  "definition": "Used by ATC to segregate air traffic from a launch vehicle, reentry vehicle, amateur rocket, jettisoned stages, hardware, or falling debris generated by failures associated with any of these activities. An AHA is designated via NOTAM as either a TFR or stationary ALTRV. Unless otherwise specified, the vertical limits of an AHA are from the surface to unlimited.",
  "abbreviation": "AHA",
  "see_also": [
    "Contingency hazard area (CHA)",
    "Refined hazard area (RHA)",
    "Transitional hazard area (THA)"
  ],
  "references": [
    "FAA Pilot/Controller Glossary"
  ],
  "url": "https://mlchart.com/terminology/aviation/aircraft-hazard-area-aha/"
}