Adopted on April 14, 1961 by the United Nations Conference on Diplomatic Intercourse and Immunities held in Vienna, Austria, from March 2 to 14 April.
The Conference also adopted the Optional Protocol concerning the Acquisition of Nationality, the Optional Protocol concerning the Compulsory Settlement of Disputes, the Final Act and four resolutions annexed to that Act. Done at Vienna, on April 18, 1961. Entered into force on April 24, 1964.