| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Accession | 04/11/1983 | 04/03/1984 |
| ALGERIA | Notification | 04/11/1983 | |
| Anguilla | Extension | 15/02/1991 | 15/06/1991 |
| Antigua | Extension | 05/01/1976 | 05/05/1976 |
| ARGENTINA | Objection | 26/07/1976 | |
| ARGENTINA | Ratification | 04/05/1992 | 04/09/1992 |
| ARGENTINA | Declaration | 04/05/1992 | |
| AUSTRALIA | Definitive Signature | 08/05/1974 | |
| AUSTRIA | Accession | 16/12/1982 | 16/04/1983 |
| AUSTRIA | Notification | 16/12/1982 | |
| BANGLADESH | Accession | 21/05/1992 | 21/09/1992 |
| BELARUS | Succession | 10/09/1999 | |
| BELGIUM | Signature | 19/03/1975 | |
| BELGIUM | Ratification | 04/03/1986 | 04/07/1986 |
| BELGIUM | Notification | 04/03/1986 | |
| BELIZE | Extension | 05/01/1976 | 05/05/1976 |
| Berlin West | Extension | 26/02/1976 | 26/06/1976 |
| Bermuda | Extension | 05/01/1976 | 05/05/1976 |
| BOLIVIA | Accession | 27/06/1990 | 27/10/1990 |
| BOSNIA AND HERZEGOVINA | Succession | 24/09/2001 | 01/03/1992 |
| BRAZIL | Accession | 24/05/1993 | 24/09/1993 |
| British Indian Ocean Territory | Extension | 07/09/1998 | 08/01/1999 |
| British Virgin Islands | Extension | 15/02/1991 | 15/06/1991 |
| Brunei | Extension | 05/01/1976 | 05/05/1976 |
| BULGARIA | Definitive Signature | 24/09/1975 | |
| BULGARIA | Declaration | 24/09/1975 | |
| BULGARIA | Notification | 24/09/1975 | |
| BURKINA FASO | Accession | 27/06/1990 | 27/10/1990 |
| CANADA | Accession | 15/01/1981 | 15/05/1981 |
| Cayman Islands | Extension | 05/01/1976 | 05/05/1976 |
| CHAD | Accession | 13/06/1990 | 13/10/1990 |
| CHILE | Accession | 27/07/1981 | 27/11/1981 |
| CROATIA | Succession | 02/11/1992 | |
| CYPRUS | Accession | 11/07/2001 | 11/11/2001 |
| CZECH REPUBLIC | Succession | 26/03/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Accession | 02/07/1990 | |
| DENMARK | Accession | 02/09/1977 | 02/01/1978 |
| DENMARK | Notification | 02/09/1977 | |
| ECUADOR | Accession | 07/09/1990 | 07/01/1991 |
| ECUADOR | Notification | 07/09/1990 | |
| ESTONIA | Ratification | 29/03/1994 | 29/07/1994 |
| ESTONIA | Notification | 29/03/1994 | |
| Falkland Island Dependencies | Extension | 05/01/1976 | 05/05/1976 |
| Falkland Islands | Extension | 05/01/1976 | 05/05/1976 |
| FINLAND | Signature | 19/03/1973 | |
| FINLAND | Ratification | 28/05/1974 | |
| GABON | Definitive Signature | 30/12/1986 | |
| GABON | Notification | 30/12/1986 | |
| GEORGIA | Accession | 07/02/1997 | 07/06/1997 |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 31/07/1978 | 30/11/1978 |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 31/07/1978 | |
| GERMANY FEDERAL REPUBLIC | Signature | 28/11/1974 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 26/02/1976 | 26/06/1976 |
| GERMANY FEDERAL REPUBLIC | Declaration | 26/02/1976 | |
| GHANA | Accession | 22/02/1988 | 22/06/1988 |
| GHANA | Notification | 22/02/1988 | |
| Gibraltar | Extension | 05/01/1976 | 05/05/1976 |
| GREECE | Accession | 21/08/1975 | |
| GUATEMALA | Accession | 26/06/1990 | 26/10/1990 |
| Guernsey, Bailiwick of | Extension | 07/09/1998 | 08/01/1999 |
| GUINEA | Accession | 18/11/1992 | 18/03/1993 |
| GUINEA | Notification | 18/11/1992 | |
| GUINEA BISSAU | Accession | 14/05/1990 | |
| HONDURAS | Accession | 23/06/1993 | 23/10/1993 |
| Hong Kong | Extension | 11/05/1979 | 10/09/1979 |
| Hong Kong | Notification | 07/09/1985 | |
| HUNGARY | Accession | 11/04/1979 | 11/08/1979 |
| HUNGARY | Statement | 11/04/1979 | |
| ICELAND | Accession | 02/12/1977 | 02/04/1978 |
| INDIA | Accession | 01/10/1981 | 01/02/1982 |
| INDONESIA | Accession | 08/04/1992 | 08/08/1992 |
| IRAN | Signature | 25/08/1972 | |
| IRAN | Ratification | 23/06/1975 | |
| IRAN | Notification | 23/06/1975 | |
| IRELAND, REPUBLIC OF | Signature | 14/02/1975 | |
| IRELAND, REPUBLIC OF | Ratification | 15/11/1984 | 15/03/1985 |
| Isle of Man | Extension | 27/05/1992 | 01/10/1992 |
| ITALY | Signature | 10/01/1975 | |
| ITALY | Ratification | 14/12/1976 | 14/04/1977 |
| JAPAN | Accession | 17/06/1980 | 17/10/1980 |
| Jersey, Bailiwick of | Extension | 05/01/1976 | 05/05/1976 |
| JORDAN | Accession | 10/01/1977 | 10/05/1977 |
| KENYA | Accession | 05/06/1990 | 05/10/1990 |
| KIRIBATI | Accession | 03/04/2013 | 03/08/2013 |
| LATVIA | Accession | 25/07/1995 | 25/11/1995 |
| LATVIA | Notification | 25/07/1995 | |
| LIBYA | Accession | 05/04/2000 | 05/08/2000 |
| MACEDONIA THE FYR OF | Succession | 04/04/1995 | |
| MACEDONIA THE FYR OF | Notification | 04/04/1995 | |
| MALAYSIA | Ratification | 10/11/1994 | |
| MALAYSIA | Declaration | 10/11/1994 | |
| MALI | Accession | 25/05/1987 | 25/09/1987 |
| MALI | Notification | 25/05/1987 | |
| MALTA | Accession | 30/09/1988 | 30/01/1989 |
| MALTA | Notification | 30/09/1988 | |
| MAURITANIA | Accession | 22/10/1982 | 22/02/1983 |
| MAURITANIA | Notification | 22/10/1982 | |
| MEXICO | Accession | 04/07/1986 | 04/11/1986 |
| MEXICO | Notification | 04/07/1986 | |
| MEXICO | Acceptance | 02/11/1992 | |
| Montserrat | Extension | 05/01/1976 | 05/05/1976 |
| MOROCCO | Definitive Signature | 20/06/1980 | 20/10/1980 |
| NAMIBIA | Accession | 23/08/1995 | 23/12/1995 |
| NAMIBIA | Notification | 23/08/1995 | |
| NEPAL | Accession | 17/12/1987 | 17/04/1988 |
| NEPAL | Notification | 17/12/1987 | |
| Netherlands Antilles | Extension | 23/05/1980 | 23/09/1980 |
| NETHERLANDS THE | Signature | 07/07/1975 | |
| NETHERLANDS THE | Ratification | 23/05/1980 | 23/09/1980 |
| NEW ZEALAND | Definitive Signature | 13/08/1976 | |
| NIGER | Definitive Signature | 30/04/1987 | 30/08/1987 |
| NIGER | Notification | 30/04/1987 | |
| NORWAY | Definitive Signature | 09/07/1974 | |
| OMAN | Accession | 19/04/2013 | 19/08/2013 |
| PAKISTAN | Signature | 17/11/1975 | |
| PAKISTAN | Ratification | 23/07/1976 | 23/11/1976 |
| PAKISTAN | Notification | 14/03/1996 | |
| PANAMA | Accession | 26/11/1990 | 26/11/1990 |
| PERU | Ratification | 30/03/1992 | 30/03/1992 |
| PHILIPPINES | Accession | 08/07/1994 | 08/11/1994 |
| Pitcairn Islands | Extension | 05/01/1976 | 05/05/1976 |
| POLAND | Accession | 22/11/1977 | 22/03/1978 |
| PORTUGAL | Signature | 05/07/1976 | |
| PORTUGAL | Ratification | 24/03/1981 | 24/11/1981 |
| RUSSIAN FEDERATION | Accession | 11/02/1992 | 11/02/1992 |
| SENEGAL | Accession | 11/07/1977 | 11/11/1977 |
| SLOVAK REPUBLIC | Succession | 31/03/1993 | 01/01/1993 |
| SLOVENIA | Succession | 28/10/1992 | |
| SOLOMON ISLANDS | Extension | 05/01/1976 | 05/05/1976 |
| SOUTH AFRICA | Definitive Signature | 12/03/1975 | |
| SOUTH AFRICA | Notification | 12/03/1975 | |
| South Georgia And South Sandwich Islands | Extension | 05/01/1976 | 05/01/1976 |
| SOUTH SUDAN | Accession | 10/06/2013 | 10/10/2013 |
| SOVIET UNION | Signature | 03/02/1974 | |
| SOVIET UNION | Declaration | 03/02/1974 | |
| SOVIET UNION | Declaration | 14/09/1976 | |
| SOVIET UNION | Ratification | 11/10/1976 | 11/02/1977 |
| SPAIN | Accession | 04/05/1982 | 04/09/1982 |
| SRI LANKA | Accession | 15/06/1990 | 15/10/1990 |
| St Helena And Dependencies | Extension | 05/01/1976 | 05/05/1976 |
| St Helena And Dependencies | Notification | 03/12/1985 | |
| SURINAME | Accession | 22/07/1985 | 22/11/1985 |
| SURINAME | Notification | 22/07/1985 | |
| SWEDEN | Definitive Signature | 05/12/1974 | |
| SWEDEN | Notification | 05/12/1974 | |
| SWITZERLAND | Signature | 21/02/1974 | |
| SWITZERLAND | Ratification | 16/01/1976 | 16/05/1976 |
| TAJIKISTAN | Accession | 18/07/2001 | 18/11/2001 |
| TANZANIA | Accession | 13/04/2000 | 13/08/2000 |
| TOGO | Accession | 04/07/1995 | 04/11/1995 |
| TOGO | Notification | 04/07/1995 | |
| TUNISIA | Accession | 24/11/1980 | 24/03/1981 |
| TURKEY | Accession | 13/07/1994 | 13/11/1994 |
| TURKMENISTAN | Accession | 03/03/2009 | 03/07/2009 |
| Turks And Caicos Islands | Extension | 05/01/1976 | 05/05/1976 |
| UGANDA | Signature | 04/03/1988 | |
| UGANDA | Ratification | 04/03/1988 | 04/07/1988 |
| UGANDA | Notification | 04/03/1988 | |
| UKRAINE | Succession | 16/01/1997 | |
| UKRAINE | Declaration | 15/07/1997 | |
| UNITED KINGDOM | Signature | 06/09/1973 | |
| UNITED KINGDOM | Ratification | 05/01/1976 | 05/05/1976 |
| UNITED KINGDOM | Notification | 05/01/1976 | |
| UNITED KINGDOM | Notification | 24/07/1981 | |
| UNITED STATES OF AMERICA | Signature | 13/09/1985 | |
| UNITED STATES OF AMERICA | Ratification | 18/12/1986 | 18/04/1987 |
| UNITED STATES OF AMERICA | Notification | 18/12/1986 | |
| URUGUAY | Accession | 22/05/1984 | 22/09/1984 |
| URUGUAY | Notification | 22/05/1984 | |
| UZBEKISTAN | Accession | 08/10/2001 | 08/02/2002 |
| VIETNAM | Accession | 20/09/1988 | 20/01/1989 |
| VIETNAM | Notification | 20/09/1988 | |
| YUGOSLAVIA | Accession | 28/03/1977 | 28/07/1977 |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 03/07/2001 | 27/04/1992 |