Note: This Convention entered into force in 1967. The preamble and the relevant chapter heading state:
The States Parties to the present Convention,
Recalling that consular relations have been established between peoples since --ancient times,
Having in mind the Purposes and Principles of the Charter of the United Nation concerning the sovereign equality of States, the maintenance of international peace and security, and the promotion of friendly relations among nations, Considering that the United Nations Conference on Diplomatic Intercourse and Immunities adopted the Vienna Convention on Diplomatic Relations which was opened for signature on 18 April 1961,
Believing that an international convention on consular relations, privileges and immunities would also contribute to the development of friendly relations among nations, irrespective of their differing constitutional and social systems,
Realizing that the purpose of such privileges and immunities is not to benefit individuals but to ensure the efficient performance of functions by consular posts on behalf of their respective States,
Affirming that the rules of customary international law continue to govern matters not expressly regulated by the provisions of the present Convention,
Have agreed as follows:
1. With a view to facilitating the exercise of consular functions relating to nationals of the sending State:
(a) Consular officers shall be free to communicate with nationals of the sending State and to have access to them. Nationals of the sending State shall have the same freedom with respect to communication with and access to consular officers of the sending State;
(b) If he so requests, the competent authorities of the receiving state shall, without delay, inform the consular post of the sending state if, within its consular district, a national of that state is arrested or committed to prison or to custody pending trial or is detained in any other manner. Any communication addressed to the consular post by the person arrested, in prison, custody or detention shall also be forwarded by the said authorities without delay. The said authorities shall inform the person concerned without delay of his rights under this sub-paragraph.
(c) Consular officers shall have the right to visit a national of the sending State who is in prison, custody or detention, to converse and correspond with him and to arrange for his legal representation. They shall also have the right to visit any national of the sending State who is in prison, custody or detention in their district in pursuance of a judgment. Nevertheless, consular officers shall refrain from taking action on behalf of a national who is in prison, custody or detention if he expressly opposes such action.
2. The rights referred to in paragraph 1 of this Article shall be exercised in conformity with the laws and regulations of the receiving State, subject to the proviso, however, that the said laws and regulations must enable full effect to be given to the purposes for which the rights accorded under this Article are intended."