| Country | Action | Action Date | Effective Date |
|---|
| ARGENTINA | Signature | 29/05/1967 | |
| AUSTRALIA | Signature | 25/05/1967 | |
| AUSTRALIA | Acceptance | 12/07/1967 | |
| AUSTRIA | Accession | 14/07/1967 | |
| BARBADOS | Accession | 19/07/1967 | |
| BELGIUM | Signature | 29/05/1967 | |
| BRAZIL | Signature | 25/05/1967 | |
| CANADA | Signature | 01/06/1967 | |
| CANADA | Acceptance | 14/07/1967 | |
| COSTA RICA | Signature | 01/06/1967 | |
| COSTA RICA | Acceptance | 13/02/1968 | |
| CUBA | Signature | 31/05/1967 | |
| EL SALVADOR | Signature | 01/06/1967 | |
| EL SALVADOR | Ratification | 15/01/1968 | |
| FINLAND | Signature | 29/05/1967 | |
| FRANCE | Signature | 26/05/1967 | |
| GERMANY FEDERAL REPUBLIC | Signature | 31/05/1967 | |
| GREECE | Signature | 31/05/1967 | |
| GUATEMALA | Signature | 31/05/1967 | |
| GUATEMALA | Ratification | 29/01/1968 | |
| HAITI | Accession | 13/07/1967 | |
| ICELAND | Signature | 01/06/1967 | |
| INDIA | Signature | 01/06/1967 | |
| IRELAND, REPUBLIC OF | Signature | 25/05/1967 | |
| ISRAEL | Signature | 31/05/1967 | |
| ISRAEL | Ratification | 24/10/1967 | |
| JAPAN | Accession | 10/07/1967 | |
| KOREA | Signature | 01/06/1967 | |
| KOREA | Ratification | 06/07/1967 | |
| LEBANON | Signature | 01/06/1967 | |
| LEBANON | Ratification | 14/05/1968 | |
| LIBYA | Accession | 23/08/1967 | |
| LUXEMBOURG | Signature | 29/05/1967 | |
| MEXICO | Signature | 26/05/1967 | |
| MEXICO | Ratification | 27/12/1967 | |
| NETHERLANDS THE | Signature | 01/06/1967 | |
| NIGERIA | Accession | 15/11/1967 | |
| NORWAY | Signature | 01/06/1967 | |
| PERU | Signature | 17/05/1967 | |
| PERU | Acceptance | 05/10/1967 | |
| PORTUGAL | Signature | 01/06/1967 | |
| PORTUGAL | Ratification | 16/12/1967 | |
| SAUDI ARABIA | Accession | 13/07/1997 | |
| SIERRA LEONE | Signature | 01/06/1967 | |
| SOUTH AFRICA | Signature | 01/06/1967 | |
| Southern Rhodesia | Signature | 26/05/1967 | |
| SOVIET UNION | Statement | 01/06/1967 | |
| SPAIN | Accession | 11/08/1967 | |
| SWEDEN | Signature | 31/05/1967 | |
| SWITZERLAND | Signature | 01/06/1967 | |
| SWITZERLAND | Approval | 29/04/1968 | |
| TRINIDAD AND TOBAGO | Accession | 29/11/1967 | |
| TUNISIA | Accession | 15/07/1967 | |
| UNITED ARAB EMIRATES | Signature | 15/05/1967 | |
| UNITED ARAB EMIRATES | Ratification | 12/04/1968 | |
| UNITED KINGDOM | Signature | 26/05/1967 | |
| UNITED STATES OF AMERICA | Signature | 31/05/1967 | |
| VATICAN CITY | Signature | 29/05/1967 | |
| VENEZUELA | Signature | 01/06/1967 | |
| VENEZUELA | Acceptance | 05/09/1967 | |
| WESTERN SAMOA | Signature | 31/05/1967 | |
| WESTERN SAMOA | Ratification | 07/08/1967 | |