Vienna Convention on Diplomatic Relations
States parties to the convention
Concerning acquisition of nationality. The head of the mission, the staff of the mission, and their families, shall not acquire the nationality of the receiving country. Concerning compulsory settlement of disputes. Disputes arising from the interpretation of this treaty may be brought before the International Court of Justice. As of October 2018, there are 192 state parties to the convention including all UN member states except Palau, the Solomon Islands, and South Sudan. Included as state parties are the Holy See and State of Palestine, the two UN observer states. The Republic of China signed and ratified the Vienna Convention on Diplomatic Relations on 18 April 1961 and 19 December 1969 respectively prior to the UN granting China's seat to The People's Republic of China. There are no states that have signed the treaty but have not ratified it.
Vienna Convention on Diplomatic Relations-8