Article 4 Vienna Convention on Consular Relations
Establishment of a consular post
1.A consular post may be established in the territory of the receiving State only with that State’s consent.
2.The seat of the consular post, its classification and the consular district shall be established by the sending State and shall be subject to the approval of the receiving State.
3.Subsequent changes in the seat of the consular post, its classification or the consular district may be made by the sending State only with the consent of the receiving State.
4.The consent of the receiving State shall also be required if a consulate-general or a consulate desires to open a vice-consulate or a consular agency in a locality other than that in which it is itself established.
5.The prior express consent of the receiving State shall also be required for the opening of an office forming part of an existing consular post elsewhere than at the seat thereof.
