| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 05/11/1965 | 01/03/1966 |
| American Samoa | Extension | 07/07/1963 | |
| ARGENTINA | Accession | 10/02/1967 | |
| AUSTRIA | Declaration | 01/01/1905 | |
| AUSTRIA | Signature | 31/10/1958 | |
| AUSTRIA | Accession | 24/09/1969 | 30/11/1969 |
| Bahamas | Extension | 20/10/1967 | |
| BAHAMAS | Succession | 27/07/1976 | 10/07/1975 |
| BELGIUM | Signature | 31/10/1958 | |
| BELGIUM | Accession | 21/08/1965 | |
| BRAZIL | Signature | 31/10/1958 | |
| BULGARIA | Accession | 28/03/1966 | |
| CAMEROON | Accession | 10/05/1964 | |
| CANADA | Objection | 01/01/1905 | |
| CENTRAL AFRICAN REPUBLIC | Accession | 19/11/1963 | |
| CHAD | Accession | 19/11/1963 | |
| CONGO | Accession | 02/08/1963 | |
| CUBA | Objection | 01/01/1905 | |
| CUBA | Signature | 31/10/1958 | |
| CUBA | Ratification | 17/01/1963 | |
| CYPRUS | Accession | 17/01/1966 | |
| CZECHOSLOVAKIA | Signature | 31/10/1958 | |
| CZECHOSLOVAKIA | Ratification | 12/08/1961 | |
| DAHOMEY | Accession | 10/01/1967 | |
| DENMARK | Signature | 31/10/1958 | |
| FINLAND | Signature | 31/10/1958 | |
| FRANCE | Signature | 31/10/1958 | |
| FRANCE | Ratification | 24/03/1961 | |
| GABON | Accession | 29/02/1964 | |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 23/09/1964 | |
| GERMANY FEDERAL REPUBLIC | Signature | 31/10/1958 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 28/07/1961 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 28/07/1961 | |
| GREECE | Objection | 01/01/1905 | |
| Guam | Extension | 07/07/1963 | |
| HAITI | Accession | 17/01/1961 | |
| HOLY SEE | Objection | 01/01/1905 | |
| HUNGARY | Objection | 01/01/1905 | |
| HUNGARY | Signature | 31/10/1958 | |
| HUNGARY | Accession | 23/03/1967 | |
| HUNGARY | Declaration | 23/03/1967 | |
| ICELAND | Objection | 01/01/1905 | |
| IRAN | Accession | 10/09/1960 | |
| IRELAND, REPUBLIC OF | Accession | 09/06/1967 | |
| IRELAND, REPUBLIC OF | Signature | 31/10/1958 | |
| ISRAEL | Accession | 18/07/1966 | |
| ISRAEL | Signature | 31/10/1958 | |
| ITALY | Accession | 29/12/1968 | |
| ITALY | Signature | 31/10/1958 | |
| IVORY COAST | Accession | 23/10/1963 | |
| JAPAN | Accession | 21/08/1965 | |
| JAPAN | Signature | 31/10/1958 | |
| KENYA | Accession | 14/06/1965 | |
| Land Berlin | Extension | 28/07/1961 | |
| LAOS | Denunciation | 30/11/1968 | |
| LAOS | Accession | 19/11/1963 | |
| LIBERIA | Signature | 31/10/1958 | |
| LIECHTENSTEIN | Signature | 31/10/1958 | |
| LUXEMBOURG | Signature | 31/10/1958 | |
| MACEDONIA THE FYR OF | Accession | 06/07/2010 | 06/10/2010 |
| MADAGASCAR | Accession | 21/12/1962 | |
| MALAWI | Succession | 06/07/1964 | |
| MALTA | Accession | 20/10/1967 | |
| MAURITANIA | Accession | 11/04/1965 | |
| MEXICO | Accession | 10/05/1964 | |
| MONACO | Signature | 31/10/1958 | |
| MONACO | Ratification | 10/10/1961 | |
| MOROCCO | Signature | 31/10/1958 | |
| MOROCCO | Accession | 15/05/1967 | |
| NETHERLANDS THE | Signature | 31/10/1958 | |
| NEW ZEALAND | Signature | 31/10/1958 | |
| NIGER | Accession | 05/07/1964 | |
| NIGERIA | Accession | 17/07/1963 | 02/09/1963 |
| NORWAY | Signature | 31/10/1958 | |
| NORWAY | Accession | 10/05/1964 | |
| PHILIPPINES | Accession | 27/09/1965 | |
| POLAND | Objection | 01/01/1905 | |
| POLAND | Signature | 31/10/1958 | |
| PORTUGAL | Signature | 31/10/1958 | |
| Puerto Rico | Extension | 07/07/1963 | |
| Rhodesia And Nyasaland | Signature | 31/10/1958 | |
| Rhodesia And Nyasaland | Accession | 01/10/1964 | |
| ROMANIA | Accession | 19/11/1963 | |
| ROMANIA | Signature | 31/10/1958 | |
| SAN MARINO | Objection | 01/01/1905 | |
| SENEGAL | Accession | 21/12/1963 | |
| SOUTH AFRICA | Accession | 17/04/1965 | |
| Southern Rhodesia | Accession | 06/04/1965 | |
| SOVIET UNION | Accession | 01/07/1965 | |
| SPAIN | Signature | 31/10/1958 | |
| SWEDEN | Signature | 31/10/1958 | |
| SWITZERLAND | Signature | 31/10/1958 | |
| SWITZERLAND | Ratification | 17/01/1963 | |
| TANGANYIKA | Accession | 02/04/1963 | 16/06/1963 |
| TOGO | Accession | 10/09/1967 | |
| TRINIDAD AND TOBAGO | Accession | 01/08/1964 | |
| TURKEY | Signature | 31/10/1958 | |
| UGANDA | Accession | 14/06/1965 | |
| UNITED KINGDOM | Declaration | 20/10/1967 | |
| UNITED KINGDOM | Signature | 31/10/1958 | |
| UNITED KINGDOM | Ratification | 06/09/1961 | |
| UNITED STATES OF AMERICA | Signature | 31/10/1958 | |
| UNITED STATES OF AMERICA | Ratification | 04/12/1961 | |
| UPPER VOLTA | Accession | 19/11/1963 | |
| VIETNAM | Objection | 01/01/1905 | |
| Virgin Islands | Extension | 07/07/1963 | |
| YUGOSLAVIA | Signature | 31/10/1958 | |
| YUGOSLAVIA | Accession | 11/04/1965 | |
| ZAMBIA | Accession | 06/04/1965 | |
| ZIMBABWE | Succession | 18/04/1980 |