| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Accession | 26/02/2003 | 28/03/2003 |
| ANDORRA | Accession | 13/02/2007 | 15/03/2007 |
| ANDORRA | Reservation | 13/02/2007 | 15/03/2007 |
| ANGOLA | Accession | 26/10/2005 | 25/11/2005 |
| Antigua | Extension | 20/06/1978 | |
| ANTIGUA AND BARBUDA | Participation | 05/04/1993 | |
| ARGENTINA | Participation | 16/11/1973 | |
| ARMENIA | Accession | 13/09/1993 | |
| AUSTRALIA | Participation | 22/11/1972 | |
| AUSTRIA | Ratification | 01/02/1978 | |
| AUSTRIA | Declaration | 16/12/1998 | |
| AZERBAIJAN | Participation | 11/01/1999 | |
| BAHAMAS | Participation | 23/11/1976 | |
| BAHRAIN | Accession | 07/02/1990 | |
| BAHRAIN | Reservation | 07/02/1990 | |
| BAHRAIN | Objection | 07/02/1990 | |
| BANGLADESH | Participation | 09/05/1980 | |
| BARBADOS | Participation | 21/06/1976 | |
| BELARUS | Participation | 13/09/2001 | |
| BELGIUM | Participation | 13/06/1984 | |
| Belize | Extension | 20/06/1978 | |
| BENIN | Participation | 06/11/1973 | |
| Bermuda | Extension | 20/06/1978 | |
| BOLIVIA | Accession | 23/09/1976 | |
| BOLIVIA | Declaration | 12/03/2009 | |
| BOLIVIA | Communication | 30/07/2009 | 30/07/2009 |
| BOLIVIA | Communication | 11/11/2009 | 19/11/2009 |
| BOLIVIA | Declaration | 18/01/2011 | |
| BOLIVIA | Declaration | 18/01/2011 | |
| BOLIVIA | Declaration | 25/02/2011 | |
| BOLIVIA | Denunciation | 29/06/2011 | 01/01/2012 |
| BOLIVIA | Accession | 11/01/2013 | 10/02/2013 |
| BOSNIA AND HERZEGOVINA | Succession | 01/09/1993 | |
| BOTSWANA | Participation | 27/12/1984 | |
| BRAZIL | Participation | 16/05/1973 | |
| British Virgin Islands | Extension | 20/06/1978 | |
| Brunei | Extension | 20/06/1978 | |
| BRUNEI DARUSSALAM | Participation | 25/11/1987 | |
| BULGARIA | Participation | 17/08/1996 | |
| BULGARIA | Communication | 28/01/2011 | |
| BURKINA FASO | Accession | 02/06/1992 | |
| BURUNDI | Accession | 18/02/1993 | |
| CAMBODIA | Ratification | 07/07/2005 | 06/08/2005 |
| CAMEROON | Participation | 30/05/1974 | |
| CANADA | Participation | 05/08/1976 | |
| CANADA | Communication | 26/01/2011 | |
| CANADA | Objection | 28/12/2012 | |
| CAPE VERDE | Accession | 24/05/1990 | |
| Cayman Islands | Extension | 20/06/1978 | |
| CENTRAL AFRICAN REPUBLIC | Accession | 15/10/2001 | |
| CHILE | Participation | 19/12/1975 | |
| CHINA | Signature | 25/03/1972 | |
| CHINA | Accession | 19/12/1975 | 19/12/1975 |
| CHINA | Communication | 26/10/1998 | |
| COLOMBIA | Participation | 03/03/1975 | |
| COLOMBIA | Communication | 17/12/2010 | |
| COMOROS | Accession | 01/03/2000 | 31/03/2000 |
| CONGO | Ratification | 03/03/2004 | 02/04/2004 |
| COSTA RICA | Participation | 14/02/1973 | |
| COSTA RICA | Communication | 04/02/2011 | |
| COTE D'IVOIRE | Participation | 28/02/1973 | |
| CROATIA | Participation | 26/07/1993 | |
| CUBA | Participation | 14/12/1989 | |
| CYPRUS | Participation | 30/11/1973 | |
| CZECH REPUBLIC | Succession | 30/12/1993 | |
| CZECHOSLOVAKIA | Participation | 04/06/1991 | |
| DENMARK | Participation | 18/04/1975 | |
| DENMARK | Communication | 28/01/2011 | |
| DJIBOUTI | Participation | 22/02/2001 | 24/03/2001 |
| Dominica | Extension | 20/06/1978 | |
| DOMINICA, COMMONWEALTH OF | Participation | 24/09/1993 | |
| DOMINICAN REPUBLIC | Participation | 21/09/1993 | |
| ECUADOR | Participation | 25/07/1973 | |
| EGYPT | Participation | 14/01/1974 | |
| EL SALVADOR | Participation | 26/02/1998 | 28/03/1998 |
| ERITREA | Participation | 30/01/2002 | 01/03/2002 |
| ESTONIA | Accession | 05/07/1996 | 04/08/1996 |
| ESTONIA | Communication | 28/01/2011 | |
| ETHIOPIA | Participation | 11/10/1994 | |
| Falkland Island Dependencies | Extension | 20/06/1978 | |
| Falkland Islands | Extension | 20/06/1978 | |
| FIJI | Participation | 21/11/1973 | |
| FINLAND | Participation | 12/01/1973 | |
| FINLAND | Objection | 08/01/2013 | |
| FRANCE | Participation | 04/09/1975 | |
| GABON | Accession | 14/10/1981 | |
| GEORGIA | Accession | 27/03/2000 | 26/04/2000 |
| GERMAN DEMOCRATIC REPUBLIC | Participation | 04/10/1988 | |
| GERMANY | Participation | 20/02/1975 | |
| GERMANY | Objection | 04/01/2013 | |
| GHANA | Accession | 10/04/1990 | |
| Gibraltar | Extension | 20/06/1978 | |
| Gilbert Islands | Extension | 20/06/1978 | |
| GREECE | Participation | 12/08/1985 | |
| GRENADA | Accession | 19/08/1998 | 18/09/1998 |
| GUATEMALA | Participation | 09/12/1975 | |
| Guernsey | Extension | 20/06/1978 | |
| GUINEA | Accession | 27/12/1990 | |
| GUINEA BISSAU | Participation | 26/11/1995 | |
| GUYANA | Participation | 15/07/2002 | 14/08/2002 |
| HAITI | Participation | 29/01/1973 | |
| HOLY SEE | Participation | 07/01/1976 | |
| HONDURAS | Participation | 08/08/1979 | |
| Hong Kong | Extension | 20/06/1978 | |
| HONG KONG SAR | Application | 06/06/1997 | 01/07/1997 |
| HUNGARY | Participation | 12/11/1987 | |
| ICELAND | Participation | 18/12/1974 | |
| INDIA | Participation | 14/12/1978 | |
| INDONESIA | Participation | 03/09/1976 | |
| IRAQ | Participation | 25/09/1978 | |
| IRELAND, REPUBLIC OF | Participation | 16/12/1980 | |
| IRELAND, REPUBLIC OF | Objection | 09/01/2013 | |
| Isle of Man | Extension | 20/06/1978 | |
| ISRAEL | Participation | 01/02/1974 | |
| ISRAEL | Objection | 08/01/2013 | |
| ITALY | Participation | 14/04/1975 | |
| ITALY | Objection | 28/12/2012 | |
| JAMAICA | Participation | 06/10/1989 | |
| JAPAN | Participation | 27/09/1973 | |
| JAPAN | Communication | 26/01/2011 | |
| JAPAN | Extension | 10/01/2013 | |
| Jersey | Extension | 20/06/1978 | |
| JORDAN | Participation | 28/02/1973 | |
| KAZAKHSTAN | Participation | 29/05/1997 | |
| KENYA | Participation | 09/02/1973 | |
| KOREA REPUBLIC OF | Participation | 25/01/1973 | |
| KUWAIT | Participation | 09/02/1973 | |
| KYRGYZSTAN | Participation | 07/10/1994 | |
| LATVIA | Participation | 16/07/1993 | |
| LATVIA | Communication | 24/01/2011 | |
| LEBANON | Participation | 04/04/1997 | |
| LESOTHO | Participation | 04/11/1974 | |
| LIBERIA | Ratification | 13/04/1987 | |
| LIBYA | Participation | 27/09/1978 | |
| LIECHTENSTEIN | Participation | 24/11/1999 | 24/12/1999 |
| LITHUANIA | Participation | 28/02/1994 | |
| LUXEMBOURG | Participation | 13/10/1976 | |
| MACEDONIA THE FYR OF | Participation | 13/10/1993 | |
| MACEDONIA THE FYR OF | Communication | 18/01/2011 | |
| MADAGASCAR | Participation | 20/06/1974 | |
| MALAWI | Participation | 04/10/1973 | |
| MALAYSIA | Participation | 20/04/1978 | |
| MALAYSIA | Communication | 31/01/2011 | |
| MALDIVES | Accession | 07/09/2000 | 07/10/2000 |
| MALI | Participation | 30/11/1995 | |
| MALTA | Accession | 22/02/1990 | |
| MARSHALL ISLANDS | Participation | 09/08/1991 | |
| MAURITANIA | Accession | 24/10/1989 | |
| MAURITIUS | Participation | 12/12/1994 | |
| MEXICO | Participation | 27/04/1977 | |
| MEXICO | Participation | 09/01/2013 | |
| MICRONESIA | Participation | 29/04/1991 | |
| MONACO | Participation | 30/12/1975 | |
| MONGOLIA | Participation | 06/05/1991 | |
| Montserrat | Extension | 20/06/1978 | |
| MOROCCO | Participation | 19/03/2002 | 18/04/2002 |
| MOZAMBIQUE | Accession | 08/06/1998 | 08/07/1998 |
| MYANMAR | Participation | 22/08/2003 | 21/09/2003 |
| NEPAL | Accession | 29/06/1987 | |
| NEPAL | Reservation | 29/06/1987 | |
| NETHERLANDS THE | Participation | 29/05/1987 | |
| NETHERLANDS THE | Objection | 08/01/2013 | |
| NEW ZEALAND | Participation | 07/06/1990 | |
| NICARAGUA | Ratification | 15/02/2005 | 17/03/2005 |
| NIGER | Participation | 28/12/1973 | |
| NIGERIA | Accession | 24/06/1981 | |
| Niue Island | Participation | 07/06/1990 | |
| NORWAY | Participation | 12/11/1973 | |
| OMAN | Participation | 24/07/1987 | |
| PAKISTAN | Participation | 02/07/1999 | 01/08/1999 |
| PALAU | Accession | 19/08/1998 | 18/09/1998 |
| PANAMA | Participation | 19/10/1972 | |
| PAPUA NEW GUINEA | Participation | 28/10/1980 | |
| PARAGUAY | Participation | 20/06/1973 | |
| PERU | Participation | 12/09/1977 | |
| PHILIPPINES | Participation | 07/06/1974 | |
| POLAND | Participation | 09/06/1993 | |
| PORTUGAL | Participation | 20/04/1979 | |
| PORTUGAL | Objection | 08/01/2013 | |
| QATAR | Accession | 03/10/1986 | |
| ROMANIA | Participation | 14/01/1974 | |
| ROMANIA | Communication | 14/01/2013 | |
| RUSSIAN FEDERATION | Participation | 03/07/1996 | |
| RUSSIAN FEDERATION | Objection | 03/01/2013 | |
| RWANDA | Accession | 15/07/1981 | |
| SAINT LUCIA | Participation | 05/07/1993 | |
| SAN MARINO | Participation | 10/10/2000 | 09/11/2000 |
| SAO TOME AND PRINCIPE | Participation | 20/07/1996 | |
| SAUDI ARABIA | Accession | 07/11/1997 | 07/12/1997 |
| SAUDI ARABIA | Reservation | 07/11/1997 | |
| SENEGAL | Participation | 25/03/1974 | |
| SEYCHELLES | Participation | 27/02/1992 | |
| SIERRA LEONE | Accession | 06/06/1994 | |
| SINGAPORE | Participation | 09/07/1975 | |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | |
| SLOVENIA | Succession | 06/07/1992 | |
| SOLOMON ISLANDS | Participation | 17/03/1982 | |
| Solomon Islands Protectorate | Extension | 20/06/1978 | |
| SOMALIA | Participation | 09/06/1988 | |
| SOUTH AFRICA | Participation | 16/12/1975 | |
| SPAIN | Participation | 04/01/1977 | |
| SRI LANKA | Participation | 29/06/1981 | |
| St Christopher, Nevis and Anguilla | Extension | 20/06/1978 | |
| St Helena And Dependencies | Extension | 20/06/1978 | |
| ST KITTS AND NEVIS | Participation | 09/05/1994 | |
| St Lucia | Extension | 20/06/1978 | |
| St Vincent | Extension | 20/06/1978 | |
| ST VINCENT AND THE GRENADINES | Participation | 03/12/2001 | 27/10/1979 |
| ST VINCENT AND THE GRENADINES | Succession | 03/12/2001 | 27/10/1979 |
| SUDAN | Participation | 05/07/1994 | |
| SURINAME | Participation | 29/03/1990 | |
| SWAZILAND | Accession | 18/10/1995 | 17/11/1995 |
| SWEDEN | Objection | 14/12/1998 | |
| SWEDEN | Communication | 20/01/2011 | |
| SWEDEN | Objection | 21/12/2012 | |
| SYRIA | Participation | 01/02/1974 | |
| TAJIKISTAN | Accession | 26/03/1997 | 25/04/1997 |
| TANZANIA | Accession | 25/03/1999 | 24/04/1999 |
| THAILAND | Participation | 09/01/1975 | |
| TOGO | Participation | 10/11/1976 | |
| Tokelau Islands | Participation | 07/06/1990 | |
| TONGA | Participation | 05/09/1973 | |
| TRINIDAD AND TOBAGO | Participation | 23/07/1979 | |
| TUNISIA | Participation | 29/06/1976 | |
| TURKEY | Participation | 20/07/2001 | 19/08/2001 |
| TURKMENISTAN | Participation | 21/02/1996 | 22/03/1996 |
| Turks And Caicos Islands | Extension | 20/06/1978 | |
| Tuvalu | Extension | 20/06/1978 | |
| UGANDA | Participation | 15/04/1988 | |
| UKRAINE | Participation | 27/09/2001 | 27/10/2001 |
| UNITED ARAB EMIRATES | Accession | 17/02/1988 | |
| UNITED KINGDOM | Signature | 25/03/1972 | |
| UNITED KINGDOM | Ratification | 20/06/1978 | |
| UNITED KINGDOM | Objection | 17/12/1998 | |
| UNITED KINGDOM | Objection | 21/01/2011 | 21/01/2011 |
| UNITED KINGDOM | App. with mods. | 21/01/2011 | |
| UNITED STATES OF AMERICA | Participation | 01/11/1972 | |
| URUGUAY | Participation | 31/10/1975 | |
| VENEZUELA | Participation | 04/12/1985 | |
| VENEZUELA | Communication | 28/01/2011 | |
| VIETNAM | Accession | 04/11/1997 | 04/12/1997 |
| VIETNAM | Reservation | 04/11/1997 | |
| YEMEN | Accession | 25/03/1996 | 24/04/1996 |
| YUGOSLAVIA | Participation | 23/06/1978 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAIRE | Participation | 15/07/1976 | |
| ZAMBIA | Participation | 12/06/1998 | |
| ZIMBABWE | Accession | 30/07/1993 | |