Rendering (a Certificate of Airworthiness) valid
urn:aero:airm:1.0.0:ContextualModel:ATMBusinessTerms:Rendering_(a_Certificate_of_Airworthiness)_valid
The action taken by a Contracting State, as an alternative to issuing its own Certificate of Airworthiness, in accepting a Certificate of Airworthiness issued by any other Contracting State as the equivalent of its own Certificate of Airworthiness.
Source:
ICAO