| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Signature | 12/11/1965 | |
| AFGHANISTAN | Ratification | 31/01/1969 | |
| Antigua | Extension | 07/03/1968 | |
| AUSTRALIA | Signature | 12/11/1965 | |
| AUSTRALIA | Ratification | 25/01/1967 | |
| AUSTRALIA | Declaration | 27/02/1973 | |
| AUSTRIA | Signature | 12/11/1965 | |
| AUSTRIA | Ratification | 23/01/1969 | |
| Bahamas | Extension | 07/03/1968 | |
| BELGIUM | Signature | 12/11/1965 | |
| Bermuda | Extension | 07/03/1968 | |
| BOLIVIA | Signature | 12/11/1965 | |
| BRAZIL | Signature | 12/11/1965 | |
| British Antarctic Territory | Extension | 07/03/1968 | |
| British Honduras | Extension | 07/03/1968 | |
| British Virgin Islands | Extension | 07/03/1968 | |
| Brunei | Extension | 07/03/1968 | |
| BURMA | Signature | 12/11/1965 | |
| CANADA | Signature | 12/11/1965 | |
| CANADA | Ratification | 30/01/1967 | |
| Cayman Islands | Extension | 07/03/1968 | |
| CENTRAL AFRICAN REPUBLIC | Signature | 12/11/1965 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 15/08/1966 | |
| CHAD | Signature | 12/11/1965 | |
| CHAD | Ratification | 30/10/1968 | |
| Channel Islands | Extension | 04/01/1967 | |
| Channel Islands | Extension | 07/03/1968 | |
| CONGO, REPUBLIC OF | Signature | 12/11/1965 | |
| CONGO, REPUBLIC OF | Ratification | 24/01/1969 | |
| COSTA RICA | Signature | 12/11/1965 | |
| CYPRUS | Signature | 12/11/1965 | |
| CYPRUS | Ratification | 09/06/1971 | |
| DENMARK | Accession | 09/11/1966 | |
| Dominica | Extension | 07/03/1968 | |
| Falkland Islands | Extension | 07/03/1968 | |
| Fiji | Extension | 07/03/1968 | |
| FIJI | Accession | 18/01/1972 | |
| FINLAND | Signature | 12/11/1965 | |
| FINLAND | Ratification | 22/06/1967 | |
| French Overseas Territories | Signature | 12/11/1965 | |
| GABON | Signature | 12/11/1965 | |
| GHANA | Signature | 12/11/1965 | |
| GHANA | Ratification | 24/01/1973 | |
| Gibraltar | Extension | 07/03/1968 | |
| GREECE | Signature | 12/11/1965 | |
| GREECE | Ratification | 26/07/1968 | |
| Grenada | Extension | 07/03/1968 | |
| HAITI | Signature | 12/11/1965 | |
| Hong Kong | Extension | 07/03/1968 | |
| Isle of Man | Extension | 04/01/1967 | |
| Isle of Man | Extension | 07/03/1968 | |
| ITU | Signature | 12/11/1965 | 01/01/1967 |
| IVORY COAST | Signature | 12/11/1965 | |
| JAPAN | Signature | 12/11/1965 | |
| JAPAN | Ratification | 30/08/1967 | |
| KOREA REPUBLIC OF | Signature | 12/11/1965 | |
| KOREA REPUBLIC OF | Ratification | 14/03/1967 | |
| LIECHTENSTEIN | Signature | 12/11/1965 | |
| LIECHTENSTEIN | Ratification | 12/12/1967 | |
| LUXEMBOURG | Signature | 12/11/1965 | |
| LUXEMBOURG | Ratification | 31/12/1968 | |
| MALAGASY REPUBLIC | Signature | 12/11/1965 | |
| MALAGASY REPUBLIC | Ratification | 30/09/1970 | |
| MALAWI | Accession | 16/12/1966 | |
| MALTA | Signature | 12/11/1965 | |
| MALTA | Ratification | 09/05/1969 | |
| MAURITANIA | Signature | 12/11/1965 | |
| MAURITANIA | Ratification | 13/08/1969 | |
| Mauritius | Extension | 07/03/1968 | |
| MEXICO | Signature | 12/11/1965 | |
| MONACO | Signature | 12/11/1965 | |
| MONGOLIA | Signature | 12/11/1965 | |
| Montserrat | Extension | 07/03/1968 | |
| NETHERLANDS THE | Signature | 12/11/1965 | |
| NETHERLANDS THE | Ratification | 14/01/1971 | |
| New Hebrides | Extension | 07/03/1968 | |
| NICARAGUA | Signature | 12/11/1965 | |
| NORWAY | Accession | 13/09/1968 | |
| Overseas Territories | Signature | 12/11/1965 | |
| Overseas Territories | Ratification | 07/03/1968 | |
| PANAMA | Signature | 12/11/1965 | |
| PARAGUAY | Signature | 12/11/1965 | |
| PARAGUAY | Ratification | 31/05/1968 | |
| PHILIPPINES | Signature | 12/11/1965 | |
| Pitcairn Islands | Extension | 07/03/1968 | |
| RWANDA | Signature | 12/11/1965 | |
| SENEGAL | Signature | 12/11/1965 | |
| SENEGAL | Ratification | 12/12/1967 | |
| Seychelles | Extension | 07/03/1968 | |
| SINGAPORE | Accession | 23/11/1967 | |
| St Christopher, Nevis and Anguilla | Extension | 07/03/1968 | |
| St Helena | Extension | 07/03/1968 | |
| St Lucia | Extension | 07/03/1968 | |
| St Vincent | Extension | 07/03/1968 | |
| Swaziland | Extension | 07/03/1968 | |
| SWEDEN | Accession | 08/01/1968 | |
| SWITZERLAND | Signature | 12/11/1965 | |
| SWITZERLAND | Ratification | 05/01/1967 | |
| THAILAND | Signature | 12/11/1965 | |
| TOGO | Signature | 12/11/1965 | |
| Tonga | Extension | 07/03/1968 | |
| TRINIDAD AND TOBAGO | Signature | 12/11/1965 | |
| Turks And Caicos Islands | Extension | 07/03/1968 | |
| UNITED KINGDOM | Signature | 12/11/1965 | |
| UNITED KINGDOM | Ratification | 04/01/1967 | |
| UNITED KINGDOM | Declaration | 04/01/1967 | |
| UNITED KINGDOM | Declaration | 07/03/1968 | |
| VATICAN CITY | Signature | 12/11/1965 | |
| VIETNAM | Accession | 15/01/1968 | |
| Western Pacific High Commsn Territories | Extension | 07/03/1968 | |
| ZAIRE | Signature | 12/11/1965 | |
| ZAMBIA | Signature | 12/11/1965 | |