Outer area (associated with Class C airspace)

{
  "id": "MLC-T-AVN-000705",
  "term": "Outer area (associated with Class C airspace)",
  "field": "Aviation and air traffic control",
  "definition": "Non-regulatory airspace surrounding designated Class C airspace airports wherein ATC provides radar vectoring and sequencing on a full-time basis for all IFR and participating VFR aircraft. The service provided in the outer area is called Class C service which includes: IFR/IFR-IFR separation; IFR/VFR-traffic advisories and conflict resolution; and VFR/VFR-traffic advisories and, as appropriate, safety alerts. The normal radius will be 20 nautical miles with some variations based on site-specific requirements. The outer area extends outward from the primary Class C airspace airport and extends from the lower limits of radar/radio coverage up to the ceiling of the approach control's delegated airspace excluding the Class C charted area and other airspace as appropriate.",
  "see_also": [
    "Conflict resolution",
    "Controlled airspace"
  ],
  "references": [
    "FAA Pilot/Controller Glossary"
  ],
  "url": "https://mlchart.com/terminology/aviation/outer-area-associated-with-class-c-airspace/"
}