ISO 7718:2003 specifies minimum requirements for dimensions and unobstructed space around main-deck passenger doors of future types of civil-passenger transport aircraft when they are intended to be compatible with the thousands of passenger boarding bridges and passenger transfer vehicles existing, or being planned, in airports worldwide.

ISO 7718:2003 is not applicable to existing models of civil transport aircraft, or derivative models with the same fuselage, for which the aircraft mating section of passenger boarding bridges or passenger transfer vehicles should be made compatible according to ISO 16004.