Non-hostile environment
urn:aero:airm:1.0.0:ContextualModel:ATMBusinessTerms:Non-hostile_environment
An environment in which: a) a safe forced landing can be accomplished because the surface and surrounding environment are adequate; b) the helicopter occupants can be adequately protected from the elements; c) search and rescue response/capability is provided consistent with anticipated exposure; and d) the assessed risk of endangering persons or property on the ground is acceptable.
Source:
ICAO