| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALBANIA | Accession | 09/07/2003 | 07/10/2003 |
| Antigua | Extension | 29/03/1966 | |
| Antilles | Extension | 01/01/1986 | |
| ARGENTINA | Accession | 13/11/2014 | 11/02/2015 |
| ARGENTINA | Declaration | 13/11/2014 | |
| ARMENIA | Accession | 18/05/1994 | 16/08/1994 |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Accession | 13/12/1973 | |
| AUSTRIA | Accession | 22/09/1972 | |
| AUSTRIA | Declaration | 22/09/1972 | |
| AZERBAIJAN | Accession | 16/08/1996 | 14/09/1996 |
| Bahamas | Extension | 29/03/1966 | |
| Barbados | Extension | 29/03/1966 | |
| Basutoland | Extension | 29/03/1966 | |
| Bechuanaland | Extension | 29/03/1966 | |
| BENIN | Accession | 08/12/2011 | 07/03/2012 |
| Bermuda | Extension | 29/03/1966 | |
| BOLIVIA | Accession | 06/10/1983 | 04/01/1984 |
| BOSNIA AND HERZEGOVINA | Acceptance | 13/12/1996 | 13/12/1997 |
| BRAZIL | Accession | 25/10/2007 | 23/01/2008 |
| British Guiana | Extension | 29/03/1966 | |
| British Honduras | Extension | 29/03/1966 | |
| British Virgin Islands | Extension | 29/03/1966 | |
| BULGARIA | Accession | 22/03/2012 | 20/06/2012 |
| CANADA | Accession | 17/07/1978 | 15/10/1978 |
| Cayman Islands | Extension | 29/03/1966 | |
| CHAD | Accession | 12/08/1999 | |
| Channel Islands | Extension | 29/03/1966 | |
| COLOMBIA | Accession | 15/08/2014 | 13/11/2014 |
| COLOMBIA | Reservation | 15/08/2014 | |
| COSTA RICA | Accession | 02/11/1977 | 31/01/1978 |
| CROATIA | Accession | 22/09/2011 | 21/12/2011 |
| DENMARK | Accession | 11/07/1977 | |
| Dominica | Extension | 29/03/1966 | |
| DOMINICAN REPUBLIC | Signature | 05/12/1961 | |
| ECUADOR | Accession | 24/09/2012 | 23/10/2012 |
| Falkland Islands | Extension | 29/03/1966 | |
| Fiji | Extension | 29/03/1966 | |
| FINLAND | Objection | 07/08/2008 | |
| FINLAND | Accession | 07/08/2008 | 05/11/2008 |
| FRANCE | Signature | 31/05/1962 | |
| FRANCE | Declaration | 31/05/1962 | |
| GERMANY FEDERAL REPUBLIC | Accession | 31/08/1977 | 29/11/1977 |
| GERMANY FEDERAL REPUBLIC | Declaration | 31/08/1977 | |
| GERMANY FEDERAL REPUBLIC | Objection | 15/05/2001 | |
| Gibraltar | Extension | 29/03/1966 | |
| Gilbert And Ellice Islands | Extension | 29/03/1966 | |
| Grenada | Extension | 29/03/1966 | |
| GUATEMALA | Accession | 19/07/2001 | 17/10/2001 |
| HONDURAS | Accession | 18/12/2012 | 18/03/2013 |
| Hong Kong | Extension | 29/03/1966 | |
| Hong Kong | Notification | 10/06/1997 | 01/07/1997 |
| HUNGARY | Accession | 12/05/2009 | 10/08/2009 |
| IRELAND, REPUBLIC OF | Accession | 18/01/1973 | |
| IRELAND, REPUBLIC OF | Declaration | 18/01/1973 | |
| Isle of Man | Extension | 29/03/1966 | |
| ISRAEL | Signature | 30/08/1961 | |
| JAMAICA | Accession | 09/02/2013 | 09/04/2013 |
| LATVIA | Accession | 14/04/1992 | 13/07/1992 |
| LESOTHO | Accession | 24/09/2004 | 23/12/2004 |
| LIBERIA | Accession | 22/09/2004 | 21/12/2004 |
| LIBYA | Accession | 16/05/1989 | 14/08/1989 |
| LIECHTENSTEIN | Accession | 25/09/2009 | 24/12/2009 |
| LITHUANIA | Declaration | 15/07/2013 | |
| LITHUANIA | Accession | 15/07/2013 | 13/10/2013 |
| Mauritius | Extension | 29/03/1966 | |
| MOLDOVA REPUBLIC OF | Accession | 19/04/2012 | 18/07/2012 |
| MONTENEGRO | Accession | 05/12/2013 | 05/03/2014 |
| Montserrat | Extension | 29/03/1966 | |
| MOZAMBIQUE | Accession | 01/10/2014 | 30/12/2014 |
| NETHERLANDS THE | Signature | 30/08/1961 | |
| NETHERLANDS THE | Ratification | 13/05/1985 | 11/08/1985 |
| NETHERLANDS THE | Declaration | 01/01/1986 | |
| NETHERLANDS THE | Communication | 06/06/2001 | |
| NEW ZEALAND | Accession | 20/09/2006 | 20/09/2006 |
| NEW ZEALAND | Declaration | 20/09/2006 | |
| NICARAGUA | Accession | 29/07/2013 | 27/10/2013 |
| NIGER | Accession | 17/06/1985 | 15/09/1985 |
| NIGER | Declaration | 17/06/1985 | |
| NIGERIA | Accession | 20/09/2011 | 19/12/2011 |
| NORWAY | Accession | 11/08/1971 | |
| NORWAY | Objection | 23/05/2001 | |
| PANAMA | Accession | 02/06/2011 | 31/08/2011 |
| PARAGUAY | Acceptance | 06/06/2012 | 04/09/2012 |
| PORTUGAL | Accession | 01/10/2012 | 30/12/2012 |
| ROMANIA | Accession | 27/01/2006 | 27/04/2006 |
| RWANDA | Accession | 04/10/2006 | 02/01/2007 |
| SENEGAL | Accession | 21/09/2005 | 20/12/2005 |
| SERBIA | Accession | 07/12/2011 | 06/03/2012 |
| Seychelles | Extension | 29/03/1966 | |
| SLOVAK REPUBLIC | Accession | 03/04/2000 | 02/07/2000 |
| Solomon Islands Protectorate | Extension | 29/03/1966 | |
| St Helena | Extension | 29/03/1966 | |
| St Kitts Nevis Anguilla | Extension | 29/03/1966 | |
| St Lucia | Extension | 29/03/1966 | |
| St Vincent | Extension | 29/03/1966 | |
| Swaziland | Extension | 29/03/1966 | |
| SWAZILAND | Accession | 16/11/1999 | 14/02/2000 |
| SWEDEN | Accession | 19/02/1969 | |
| SWEDEN | Objection | 23/05/2001 | |
| Tokelau Islands | Extension | 20/09/2006 | |
| TUNISIA | Accession | 12/05/2000 | 10/08/2000 |
| TUNISIA | Reservation | 12/05/2000 | |
| TUNISIA | Declaration | 12/05/2000 | |
| TURKMENISTAN | Accession | 29/08/2012 | 27/11/2012 |
| Turks And Caicos Islands | Extension | 29/03/1966 | |
| UNITED KINGDOM | Signature | 30/08/1961 | |
| UNITED KINGDOM | Ratification | 29/03/1966 | |
| UNITED KINGDOM | Declaration | 29/03/1966 | |
| URUGUAY | Accession | 21/09/2001 | 20/12/2001 |