Adequate alternate aerodrome
urn:aero:airm:1.0.0:ContextualModel:ATMBusinessTerms:Adequate_alternate_aerodrome
An adequate alternate aerodrome is one at which the landing performance requirements can be met and which is expected to be available, if required, and which has the necessary facilities and services, such as air traffic control, lighting, communications, meteorological services, navigation aids, rescue and fire-fighting services and one suitable instrument approach procedure.
Source:
ICAO