Then there is an onsite evaluation by one of two nongovernmental organizations: ICOMOS for cultural sites and the IUCN for natural sites. Then a special seven-member committee reviews the reports and evaluations of the experts, before finally turning the proposal over to the 21 representative countries on the World Heritage Committee for a final decision.
而要登錄自然遺產的認定條件有四項：一、代表地球演化各種發展階段的典型範例，包括生命的記載、地形發展中主要的地質演變過程，或主要的地貌、地文特徵。