| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Signature | 18/03/1968 | |
| AUSTRALIA | Signature | 18/03/1968 | |
| AUSTRALIA | Ratification | 26/09/1968 | |
| AUSTRIA | Accession | 01/10/1969 | |
| BELGIUM | Notification | 26/09/1968 | |
| BELGIUM | Accession | 31/12/1969 | |
| BOLIVIA | Signature | 18/03/1968 | |
| BOLIVIA | Ratification | 30/12/1968 | |
| BRAZIL | Signature | 28/03/1968 | |
| BRAZIL | Ratification | 11/10/1968 | |
| BURUNDI | Signature | 30/03/1968 | |
| BURUNDI | Ratification | 17/09/1968 | |
| CAMEROON | Signature | 29/03/1968 | |
| CAMEROON | Ratification | 09/10/1968 | |
| CANADA | Signature | 29/03/1968 | |
| CANADA | Ratification | 21/08/1968 | |
| CENTRAL AFRICAN REPUBLIC | Signature | 20/03/1968 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 20/12/1968 | |
| COLOMBIA | Signature | 18/03/1968 | |
| COLOMBIA | Ratification | 26/09/1968 | |
| CONGO | Signature | 28/03/1968 | |
| CONGO | Ratification | 20/12/1968 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Signature | 28/03/1968 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Ratification | 12/12/1968 | |
| COSTA RICA | Signature | 30/03/1968 | |
| COSTA RICA | Ratification | 30/12/1968 | |
| CYPRUS | Signature | 28/03/1968 | |
| CYPRUS | Ratification | 26/09/1968 | |
| CZECHOSLOVAKIA | Approval | 29/03/1968 | 04/09/1968 |
| DAHOMEY | Approval | 12/09/1968 | |
| DENMARK | Signature | 29/03/1968 | |
| DENMARK | Ratification | 27/09/1968 | |
| DENMARK | Statement | 27/09/1968 | |
| DOMINICAN REPUBLIC | Signature | 26/03/1968 | |
| DOMINICAN REPUBLIC | Ratification | 30/09/1968 | |
| ECUADOR | Signature | 28/03/1968 | |
| ECUADOR | Ratification | 16/12/1968 | |
| EL SALVADOR | Signature | 28/03/1968 | |
| EL SALVADOR | Ratification | 16/12/1968 | |
| ETHIOPIA | Signature | 28/03/1968 | |
| ETHIOPIA | Ratification | 24/09/1968 | |
| FINLAND | Signature | 29/03/1968 | |
| FINLAND | Ratification | 30/12/1968 | |
| FINLAND | Statement | 30/12/1968 | |
| FRANCE | Notification | 01/01/1905 | |
| FRANCE | Approval | 28/03/1968 | 19/08/1968 |
| GABON | Signature | 18/03/1968 | |
| GABON | Ratification | 30/09/1968 | |
| GERMANY FEDERAL REPUBLIC | Notification | 01/01/1905 | |
| GERMANY FEDERAL REPUBLIC | Signature | 28/03/1968 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 11/09/1968 | |
| GERMANY FEDERAL REPUBLIC | Statement | 11/09/1968 | |
| GHANA | Signature | 18/03/1968 | |
| GHANA | Ratification | 23/12/1968 | |
| GUATEMALA | Signature | 28/03/1968 | |
| GUATEMALA | Ratification | 30/09/1968 | |
| GUINEA | Signature | 28/03/1968 | |
| GUINEA | Ratification | 30/12/1968 | |
| HAITI | Signature | 18/03/1968 | |
| HAITI | Ratification | 25/09/1968 | |
| HONDURAS | Signature | 18/03/1968 | |
| HONDURAS | Ratification | 16/12/1968 | |
| Hong Kong | Extension | 27/09/1968 | |
| INDIA | Signature | 30/03/1968 | |
| INDIA | Ratification | 31/12/1968 | |
| INDONESIA | Signature | 28/03/1968 | |
| INDONESIA | Acceptance | 26/09/1968 | |
| ISRAEL | Signature | 31/03/1968 | |
| ISRAEL | Ratification | 26/09/1968 | |
| ITALY | Signature | 28/03/1968 | |
| ITALY | Communication | 22/08/1968 | |
| ITALY | Ratification | 21/03/1973 | |
| IVORY COAST | Signature | 26/03/1968 | |
| IVORY COAST | Ratification | 27/09/1968 | |
| JAMAICA | Signature | 28/03/1968 | |
| JAMAICA | Ratification | 17/09/1968 | |
| JAPAN | Accession | 28/05/1969 | |
| JAPAN | Communication | 17/06/1969 | |
| KENYA | Signature | 22/03/1968 | |
| KENYA | Ratification | 10/12/1968 | |
| LUXEMBOURG | Notification | 26/09/1968 | |
| LUXEMBOURG | Accession | 31/12/1969 | |
| MEXICO | Signature | 20/03/1968 | |
| MEXICO | Ratification | 13/12/1968 | |
| NETHERLANDS THE | Signature | 28/03/1968 | |
| NETHERLANDS THE | Ratification | 30/12/1968 | |
| NETHERLANDS THE | Statement | 30/12/1968 | |
| New Guinea | Extension | 26/09/1968 | |
| NEW ZEALAND | Signature | 27/03/1968 | |
| NEW ZEALAND | Ratification | 07/08/1968 | |
| NICARAGUA | Signature | 29/03/1968 | |
| NICARAGUA | Ratification | 30/09/1968 | |
| NIGERIA | Signature | 18/03/1968 | |
| NIGERIA | Ratification | 18/06/1968 | |
| NORWAY | Signature | 29/03/1968 | |
| NORWAY | Ratification | 23/12/1968 | |
| NORWAY | Statement | 23/12/1968 | |
| PANAMA | Accession | 21/12/1968 | |
| Papua | Extension | 26/09/1968 | |
| PARAGUAY | Acceptance | 27/12/1968 | |
| PERU | Signature | 30/03/1968 | |
| PERU | Ratification | 25/10/1968 | |
| POLAND | Objection | 01/01/1905 | |
| PORTUGAL | Signature | 18/03/1968 | |
| PORTUGAL | Ratification | 30/10/1968 | |
| SIERRA LEONE | Signature | 18/03/1968 | |
| SIERRA LEONE | Ratification | 11/12/1968 | |
| SOVIET UNION | Objection | 01/01/1905 | |
| SOVIET UNION | Statement | 01/01/1905 | |
| SOVIET UNION | Signature | 18/03/1968 | |
| SPAIN | Accession | 28/04/1969 | |
| SWEDEN | Signature | 29/03/1968 | |
| SWEDEN | Ratification | 30/09/1968 | |
| SWEDEN | Statement | 30/09/1968 | |
| SWITZERLAND | Signature | 29/03/1968 | |
| SWITZERLAND | Ratification | 30/09/1968 | |
| SWITZERLAND | Statement | 30/09/1968 | |
| TANZANIA | Signature | 28/03/1968 | |
| TANZANIA | Ratification | 01/10/1968 | |
| TOGO | Signature | 27/03/1968 | |
| TOGO | Ratification | 29/11/1968 | |
| TRINIDAD AND TOBAGO | Signature | 29/03/1968 | |
| TRINIDAD AND TOBAGO | Ratification | 10/07/1968 | |
| TUNISIA | Signature | 29/03/1968 | |
| UGANDA | Signature | 28/03/1968 | |
| UGANDA | Ratification | 14/10/1968 | |
| UNITED KINGDOM | Notification | 01/01/1905 | |
| UNITED KINGDOM | Signature | 29/03/1968 | |
| UNITED KINGDOM | Ratification | 27/09/1968 | |
| UNITED KINGDOM | Declaration | 27/09/1968 | |
| UNITED STATES OF AMERICA | Notification | 01/01/1905 | |
| UNITED STATES OF AMERICA | Signature | 21/03/1968 | |
| UNITED STATES OF AMERICA | Ratification | 01/11/1968 | |
| VENEZUELA | Signature | 28/03/1968 | |
| VENEZUELA | Ratification | 18/12/1968 |