| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Signature | 14/11/1969 | |
| ALGERIA | Ratification | 25/01/1973 | |
| Antilles And Suriname | Signature | 14/11/1969 | |
| Antilles And Suriname | Ratification | 07/09/1971 | |
| ARGENTINA | Signature | 14/11/1969 | |
| ARGENTINA | Ratification | 06/11/1974 | |
| ARGENTINA | Declaration | 06/11/1974 | |
| AUSTRIA | Signature | 14/11/1969 | |
| AUSTRIA | Ratification | 27/08/1971 | |
| BELGIUM | Signature | 14/11/1969 | |
| BELGIUM | Approval | 21/05/1971 | |
| BOLIVIA | Signature | 14/11/1969 | |
| BURUNDI | Signature | 14/11/1969 | |
| BURUNDI | Ratification | 05/02/1973 | |
| CAMEROON | Signature | 14/11/1969 | |
| CAMEROON | Ratification | 21/11/1974 | |
| CENTRAL AFRICAN REPUBLIC | Signature | 14/11/1969 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 09/07/1973 | |
| CHAD | Signature | 14/11/1969 | |
| CHAD | Ratification | 06/01/1972 | |
| Channel Islands | Extension | 30/06/1972 | |
| CHILE | Signature | 14/11/1969 | |
| CHILE | Ratification | 20/09/1972 | |
| COLOMBIA | Signature | 14/11/1969 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Signature | 14/11/1969 | |
| CONGO, PEOPLES REPUBLIC OF | Signature | 14/11/1969 | |
| COTE D'IVOIRE | Signature | 14/11/1969 | |
| DAHOMEY | Signature | 14/11/1969 | |
| DENMARK | Signature | 14/11/1969 | |
| DENMARK | Ratification | 17/02/1971 | |
| EGYPT | Signature | 14/11/1969 | |
| EGYPT | Ratification | 03/06/1971 | |
| FINLAND | Signature | 14/11/1969 | |
| FINLAND | Ratification | 21/07/1972 | |
| FRANCE | Signature | 14/11/1969 | |
| FRANCE | Approval | 18/02/1971 | |
| French O/seas Postal & Telecom Office Terr. | Signature | 14/11/1969 | |
| French O/seas Postal & Telecom Office Terr. | Approval | 18/02/1971 | |
| GABON | Signature | 14/11/1969 | |
| GABON | Ratification | 23/11/1972 | |
| GERMANY FEDERAL REPUBLIC | Signature | 14/11/1969 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 05/10/1971 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 05/10/1971 | |
| GREECE | Signature | 14/11/1969 | |
| GREECE | Ratification | 31/05/1972 | |
| GUINEA | Signature | 14/11/1969 | |
| GUINEA | Ratification | 26/07/1973 | |
| ICELAND | Signature | 14/11/1969 | |
| ICELAND | Ratification | 29/03/1971 | |
| INDONESIA | Signature | 14/11/1969 | |
| Isle of Man | Extension | 30/06/1972 | |
| ITALY | Signature | 14/11/1969 | |
| ITALY | Ratification | 30/08/1972 | |
| JAPAN | Signature | 14/11/1969 | |
| JAPAN | Approval | 08/06/1971 | |
| Land Berlin | Extension | 05/10/1971 | |
| LAOS | Signature | 14/11/1969 | |
| LAOS | Approval | 15/10/1971 | |
| LEBANON | Signature | 14/11/1969 | |
| LIBYA | Accession | 08/08/1973 | |
| LIBYA | Declaration | 08/08/1973 | |
| LIECHTENSTEIN | Signature | 14/11/1969 | |
| LIECHTENSTEIN | Ratification | 05/11/1971 | |
| LUXEMBOURG | Signature | 14/11/1969 | |
| LUXEMBOURG | Ratification | 06/08/1971 | |
| MADAGASCAR | Signature | 14/11/1969 | |
| MADAGASCAR | Approval | 09/01/1973 | |
| MALI | Signature | 14/11/1969 | |
| MALI | Ratification | 18/08/1972 | |
| MAURITANIA | Signature | 14/11/1969 | |
| MEXICO | Signature | 14/11/1969 | |
| MONACO | Signature | 14/11/1969 | |
| MONACO | Ratification | 14/07/1971 | |
| MOROCCO | Signature | 14/11/1969 | |
| MOROCCO | Ratification | 19/07/1973 | |
| NETHERLANDS THE | Signature | 14/11/1969 | |
| NETHERLANDS THE | Ratification | 07/09/1971 | |
| NICARAGUA | Signature | 14/11/1969 | |
| NIGER | Signature | 14/11/1969 | |
| NIGER | Approval | 21/06/1971 | |
| NORWAY | Signature | 14/11/1969 | |
| NORWAY | Approval | 29/03/1973 | |
| PARAGUAY | Signature | 14/11/1969 | |
| SAN MARINO | Signature | 14/11/1969 | |
| SAN MARINO | Approval | 01/07/1971 | |
| SENEGAL | Signature | 14/11/1969 | |
| SPAIN | Signature | 14/11/1969 | |
| SPAIN | Ratification | 08/05/1973 | |
| Spain, Territories In Africa | Signature | 14/11/1969 | |
| SWEDEN | Signature | 14/11/1969 | |
| SWEDEN | Ratification | 01/10/1971 | |
| SWITZERLAND | Signature | 14/11/1969 | |
| SWITZERLAND | Ratification | 23/03/1971 | |
| TOGO | Signature | 14/11/1969 | |
| TOGO | Ratification | 15/12/1971 | |
| TRINIDAD AND TOBAGO | Signature | 14/11/1969 | |
| TUNISIA | Signature | 14/11/1969 | |
| TUNISIA | Ratification | 16/11/1971 | |
| TUNISIA | Reservation | 16/11/1971 | |
| TURKEY | Signature | 14/11/1969 | |
| UNITED KINGDOM | Signature | 14/11/1969 | |
| UNITED KINGDOM | Ratification | 30/06/1972 | |
| UNITED KINGDOM | Approval | 30/06/1972 | |
| UNITED KINGDOM | Objection | 22/01/1975 | |
| UPPER VOLTA | Signature | 14/11/1969 | |
| UPPER VOLTA | Approval | 29/05/1971 | |
| URUGUAY | Signature | 14/11/1969 | |
| VATICAN CITY | Signature | 14/11/1969 | |
| VATICAN CITY | Ratification | 11/05/1973 | |
| YEMEN ARAB REPUBLIC | Signature | 14/11/1969 | |
| YUGOSLAVIA | Signature | 14/11/1969 | |