All relevant documentation is available at the following web address : whc.unesco.org/en/documents (select the year, the session, the document reference or the title of the document ....)
According to the Convention, a Committee member's mandate is for 6 years.
The General Assembly (Resolution 13 GA 9, paragraph 6) invites the States Parties to the World Heritage Conventionto voluntarily reduce their term of office from six to four years.
There are 21 Committee members represented by 21 States Parties to the World Heritage Convention.
Please refer to Rule 14 of the Rules of Procedure of the General Assembly: "Election of the members of the World Heritage Committee"
Following the 1st Extraordinary Session (UNESCO, 2014), the General Assembly amended its Rules of Procedures in order to achieve the goal of an equitable geographical and cultural representation on the World Heritage Committee, through the allocation of seats by region (defined with reference to UNESCO’s electoral groups) on the World Heritage Committee.
For more details please refer to Article 14 of the Rules of Procedures.
No, there is no provision.
Elections to replace outgoing Committee members take place during the General Assembly of States Parties, meeting every two years during the General Conference of UNESCO (Article 8.3 of the Convention).
For more information on the forthcoming elections see General Assembly.