“Although buffer zones are not part of the nominated property, any modifications to or creation of buffer zones subsequent to inscription of a property on the World Heritage List should be approved by the World Heritage Committee using the procedure for a minor boundary modification (see paragraph 164 and Annex 11). The creation of buffer zones subsequent to inscription is normally considered to be a minor boundary modification.”
“[For a nomination to be considered as “complete”, the following requirements (see format in Annex 5) are to be met:] (…) In section 3.2, a comparative analysis of the nominated property in relation to similar properties, whether or not on the World Heritage List, both at the national and international levels, shall be provided. The comparative analysis shall explain the importance of the nominated property in its national and international context."
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).