| Country | Action | Action Date | Effective Date |
|---|
| Anguilla | Accession | 04/05/1982 | |
| ANTIGUA AND BARBUDA | Signature | 18/10/1969 | |
| ANTIGUA AND BARBUDA | Ratification | 30/01/1970 | |
| BAHAMAS | Signature | 18/10/1969 | |
| BAHAMAS | Ratification | 28/01/1970 | |
| BARBADOS | Signature | 18/10/1969 | |
| BARBADOS | Ratification | 16/01/1970 | |
| BRAZIL | Accession | 12/12/2012 | |
| British Honduras | Signature | 18/10/1969 | |
| British Honduras | Ratification | 26/01/1970 | |
| British Virgin Islands | Signature | 18/10/1969 | |
| British Virgin Islands | Ratification | 30/01/1970 | |
| CANADA | Signature | 18/10/1969 | |
| CANADA | Ratification | 22/01/1970 | |
| Cayman Islands | Signature | 18/10/1969 | |
| Cayman Islands | Ratification | 27/01/1970 | |
| CHINA | Accession | 03/10/1997 | 20/01/1998 |
| COLOMBIA | Accession | 22/11/1974 | |
| DOMINICA, COMMONWEALTH OF | Signature | 18/10/1969 | |
| DOMINICA, COMMONWEALTH OF | Ratification | 26/01/1970 | |
| FRANCE | Accession | 11/05/1984 | |
| GERMANY FEDERAL REPUBLIC | Accession | 25/05/1989 | 27/10/1989 |
| GERMANY FEDERAL REPUBLIC | Understanding | 25/05/1989 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 25/05/1989 | |
| GERMANY FEDERAL REPUBLIC | Reservation | 25/05/1989 | |
| GRENADA | Signature | 18/10/1969 | |
| GRENADA | Ratification | 26/01/1970 | |
| GUYANA | Signature | 18/10/1969 | |
| GUYANA | Ratification | 22/01/1970 | |
| HAITI | Accession | 01/04/2005 | |
| ITALY | Accession | 26/10/1988 | 02/11/1988 |
| JAMAICA | Signature | 18/10/1969 | |
| JAMAICA | Ratification | 09/01/1970 | |
| MEXICO | Accession | 07/05/1982 | |
| Montserrat | Signature | 18/10/1969 | |
| Montserrat | Ratification | 28/01/1970 | |
| St Kitts Nevis Anguilla | Signature | 18/10/1969 | |
| St Kitts Nevis Anguilla | Ratification | 26/01/1970 | |
| St Lucia | Signature | 18/10/1969 | |
| St Lucia | Ratification | 21/01/1970 | |
| ST VINCENT AND THE GRENADINES | Signature | 18/10/1969 | |
| ST VINCENT AND THE GRENADINES | Ratification | 21/01/1970 | |
| SURINAME | Accession | 29/03/2011 | |
| TRINIDAD AND TOBAGO | Signature | 20/01/1970 | |
| Turks And Caicos Islands | Signature | 18/10/1969 | |
| Turks And Caicos Islands | Ratification | 05/01/1970 | |
| UNITED KINGDOM | Signature | 18/10/1969 | |
| UNITED KINGDOM | Ratification | 23/01/1970 | |
| UNITED KINGDOM | Declaration | 23/01/1970 | |
| VENEZUELA | Accession | 25/04/1973 | |