“II. TRANSBOUNDARY AND TRANSNATIONAL NOMINATIONS
6) [The World Heritage Committee] decides to consider as:
(a) transboundary nomination, only a property jointly nominated as such, in conformity with Article 11.3 of the Convention, by all concerned States Parties having adjacent borders;
(b) transnational nomination, a serial nomination of properties located in the territory of different States Parties, which need not be contiguous and which are nominated with the consent of all States Parties concerned”.
2.7.2 - Transboundary and transnational properties