15.c) "[The World Heritage Committee encourages States Parties to] (…) be proactive in relation to development and conservation of World Heritage properties by conducting a Strategic Environmental Assessment (SEA) at the time of nomination to anticipate the impact of any potential development on the Outstanding Universal Value."
4. "[The World Heritage Committee] (…) recalls that, in order to be effective, the upstream support should ideally take place at an early stage, preferably at the moment of the preparation or revision of the States Parties’ Tentative Lists."
7. "[The World Heritage Committee] decides that comparative analyses by States Parties as part of the nomination dossier shall be undertaken in relation to similar properties, whether or not on the World Heritage List, both at the national and international levels."
The World Heritage Committee recommends undertaking a deep comparative analysis in order to demonstrate the Outstanding Universal Value of the property by fully assessing the relative values of the nominated property against other sites (based on Case law on decisions on Nominations).
4. "[The World Heritage Committee] reiterates that due to the complexity of mixed site nominations and their evaluation, States Parties should ideally seek prior advice from IUCN and ICOMOS, if possible at least two years before a potential nomination is submitted, in compliance with Paragraph 122 of the Operational Guidelines."
The World Heritage committee recommends addressing landscape surveys and the historic evolution of the landscape, as a holistic reflection of history and cultural traditions and of the interaction between culture and nature, including the way the landscape has been shaped by human practices and natural resources (based on Case law on decisions on Nominations).