 The Liability Convention was concluded and opened for signature on 29 March 1972.It entered into force on 1 September 1972.As of 1 January 2019, 96 States have ratified the Liability Convention, 19 have signed but not ratified and four international intergovernmental organizations (the European Space Agency, the European Organisation for the Exploitation of Meteorological Satellites, the Intersputnik International Organization of Space Communications, and the European Telecommunications Satellite Organization) have declared their acceptance of the rights and obligations provided for in the Agreement.