Solivagant:
Modifications... to buffer zones....I guess that a significant reduction could be regarded as impacting the OUV and could result on a site being placed "in danger" or even removed. But what about a significant increase in the Buffer Zone? I presume that the States Party merely has to register it?
Further to this I note Para 107 of the OG
"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"So it doesn't cover reductions to buffer zones after inscription and even the procedures for increases contain the caveat "normally"
Andrew:
does a minor boundary modification need to be assessed by IUCN/ICOMOS as per Annexe 6 of the guidelines including stakeholder engagement/consultation?
From the Guidelines (paras 163-4) I would have thought that it was clear that "Minor boundary modifications" do not need to be assessed IN ANY WAY by IUCN/ICOMOS IF they agree that the change is indeed "minor". i,e "
one which has not a significant impact on the extent of the property nor affects its Outstanding Universal Value" -and the procedures are designed to ensure that IUCN/ICOMOS have the chance to assess whether a proposed modification is indeed minor before it goes through. How they might assess whether a proposed change doesn't have a "siginificant" impact is of course not specified precisely but one could imagine that they would have to be satisfied that it didn't alter any of the factors on which the inscription had originally been gained - OUV, Integrity, Authenticity etc.
I can't really imagine why a States Party would want to add to an inscribed area in a way which might call into question any of those aspects but I guess one might try to slip in something of questionable value e.g in some countries where there could be some political advantage from getting some street or building included within a city inscription for instance. Certainly not all "minor" boundary changes are totally insignificant. I have had a look at a few historical boundary changes and note that Australia got the potential Uranium mining area of Koongara added as a "minor" boundary change to Kakadu despite the significance of this change which wasn't simply a few minor sq kms added "here or there"! Such an extension only became possible becuase of legal changes which Australia had implemented - yet ICOMOS/UNESCO took these at face value without insisting on a formal evaluation. No doubt they were very pleased to do so and saw no reason to make the Australian government jump through any further hoops!!. See
http://intercontinentalcry.org/unesco-includes-koongarra-uranium-deposit-in-kakadu-na tional-park/