| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Accession | 20/02/1969 | 21/05/1969 |
| ALGERIA | Succession | 02/06/1964 | 31/08/1964 |
| ANGOLA | Adherence | 10/03/1998 | 08/06/1998 |
| ARGENTINA | Accession | 12/06/1969 | 10/09/1969 |
| Ascension Island | Extension | 03/03/1967 | 01/06/1967 |
| AUSTRALIA | Signature | 12/07/1956 | |
| AUSTRALIA | Ratification | 23/06/1959 | 01/08/1963 |
| AUSTRALIA | Declaration | 23/06/1959 | |
| AUSTRIA | Accession | 26/03/1971 | 24/06/1971 |
| Bahamas | Extension | 03/03/1967 | 01/06/1967 |
| BAHAMAS | Succession | 23/05/1975 | |
| BAHRAIN | Accession | 12/03/1998 | 10/06/1998 |
| BANGLADESH | Succession | 13/02/1979 | 02/03/1979 |
| BELGIUM | Signature | 28/09/1955 | |
| BELGIUM | Ratification | 27/08/1963 | 25/11/1963 |
| Bermuda | Extension | 03/03/1967 | 01/06/1967 |
| BOSNIA AND HERZEGOVINA | Succession | 03/03/1995 | |
| BRAZIL | Signature | 28/09/1955 | |
| BRAZIL | Ratification | 16/06/1964 | 14/09/1964 |
| British Antarctic Territory | Extension | 03/03/1967 | 01/06/1967 |
| British Honduras | Extension | 03/03/1967 | 01/06/1967 |
| British Indian Ocean Territory | Extension | 03/03/1967 | 01/06/1967 |
| British Solomon Islands | Extension | 03/03/1967 | 01/06/1967 |
| British Virgin Islands | Extension | 03/03/1967 | 01/06/1967 |
| BULGARIA | Accession | 14/12/1963 | 13/03/1964 |
| BYELORUSSIA S S R | Signature | 09/04/1960 | |
| BYELORUSSIA S S R | Ratification | 17/01/1961 | 01/08/1963 |
| CAMBODIA | Accession | 12/12/1996 | 12/03/1997 |
| CAMEROON | Succession | 02/09/1961 | 01/08/1963 |
| CANADA | Signature | 16/08/1956 | |
| CANADA | Ratification | 18/04/1964 | 17/07/1964 |
| Cayman Islands | Extension | 03/03/1967 | 01/06/1967 |
| Central Southern Line Islands | Extension | 03/03/1967 | 01/06/1967 |
| CHAD | Succession | 13/06/1964 | |
| Channel Islands | Extension | 03/03/1967 | 01/06/1967 |
| CHILE | Accession | 02/03/1979 | 31/05/1979 |
| CHINA | Accession | 20/08/1975 | 18/11/1975 |
| COLOMBIA | Accession | 15/08/1966 | 13/11/1966 |
| CONGO, PEOPLES REPUBLIC OF | Succession | 05/01/1962 | 19/01/1962 |
| COSTA RICA | Accession | 10/05/1984 | 08/08/1984 |
| CROATIA | Succession | 08/07/1993 | 08/10/1991 |
| CUBA | Accession | 30/08/1965 | 28/11/1965 |
| CYPRUS | Accession | 23/07/1970 | |
| CZECH REPUBLIC | Succession | 29/11/1994 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 28/09/1955 | |
| CZECHOSLOVAKIA | Ratification | 23/11/1957 | |
| DAHOMEY | Succession | 27/01/1962 | 01/08/1963 |
| DENMARK | Signature | 16/03/1957 | |
| DENMARK | Ratification | 03/05/1963 | 01/08/1963 |
| DOMINICAN REPUBLIC | Accession | 25/02/1972 | 25/05/1972 |
| ECUADOR | Accession | 01/12/1969 | 01/03/1970 |
| EGYPT | Signature | 28/09/1955 | |
| EGYPT | Ratification | 26/04/1956 | 01/08/1963 |
| EL SALVADOR | Signature | 28/09/1955 | |
| EL SALVADOR | Ratification | 17/09/1956 | 01/08/1963 |
| ESTONIA | Accession | 16/08/1998 | 14/06/1998 |
| Falkland Island Dependencies | Extension | 03/03/1967 | 01/06/1967 |
| Fiji | Extension | 03/03/1967 | 01/06/1967 |
| FIJI | Succession | 25/02/1972 | 15/03/1972 |
| FINLAND | Accession | 25/05/1977 | 23/08/1977 |
| FRANCE | Signature | 28/09/1955 | |
| FRANCE | Ratification | 19/05/1959 | 01/08/1963 |
| GABON | Succession | 15/02/1969 | 16/05/1969 |
| GERMAN DEMOCRATIC REPUBLIC | Signature | 11/12/1957 | |
| GERMAN DEMOCRATIC REPUBLIC | Ratification | 19/05/1959 | |
| GERMANY FEDERAL REPUBLIC | Signature | 28/09/1955 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 27/10/1960 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 27/10/1960 | |
| GHANA | Accession | 11/08/1997 | 09/11/1997 |
| Gibraltar | Extension | 03/03/1967 | 01/06/1967 |
| Gilbert And Ellice Islands | Extension | 03/03/1967 | 01/06/1967 |
| GREECE | Signature | 28/09/1955 | |
| GREECE | Ratification | 23/06/1965 | 21/09/1965 |
| GRENADA | Succession | 15/08/1985 | 13/11/1985 |
| GUATEMALA | Accession | 28/07/1971 | 26/10/1971 |
| GUINEA | Accession | 09/10/1990 | 07/01/1991 |
| Hong Kong | Extension | 03/03/1967 | 01/06/1967 |
| HUNGARY | Signature | 28/09/1955 | |
| HUNGARY | Ratification | 04/10/1957 | 01/08/1963 |
| ICELAND | Signature | 03/05/1963 | |
| ICELAND | Ratification | 03/05/1963 | 01/08/1963 |
| INDIA | Accession | 14/02/1973 | 15/05/1973 |
| IRAN | Accession | 08/07/1975 | 06/10/1975 |
| IRAQ | Accession | 28/06/1972 | 26/09/1972 |
| IRAQ | Declaration | 28/06/1972 | |
| IRELAND, REPUBLIC OF | Signature | 28/09/1955 | |
| IRELAND, REPUBLIC OF | Ratification | 12/10/1959 | 01/08/1963 |
| Isle of Man | Extension | 03/03/1967 | 01/06/1967 |
| ISRAEL | Signature | 28/09/1955 | |
| ISRAEL | Ratification | 05/08/1964 | 03/11/1964 |
| ITALY | Signature | 28/09/1955 | |
| ITALY | Ratification | 04/05/1963 | 02/08/1963 |
| IVORY COAST | Succession | 07/02/1962 | 22/02/1962 |
| JAPAN | Signature | 02/05/1956 | |
| JAPAN | Ratification | 10/08/1967 | 08/11/1967 |
| JORDAN | Accession | 15/11/1973 | 13/02/1974 |
| KENYA | Accession | 06/07/1999 | 04/10/1999 |
| KOREA DEMOCRATIC PEOPLE'S REPUBLIC OF | Accession | 04/11/1980 | 02/02/1981 |
| KOREA REPUBLIC OF | Accession | 13/07/1967 | 11/10/1967 |
| KUWAIT | Accession | 11/08/1975 | 09/11/1975 |
| Land Berlin | Extension | 27/10/1960 | |
| LAOS | Signature | 28/09/1955 | |
| LAOS | Ratification | 09/05/1956 | |
| LATVIA | Accession | 02/10/1998 | 31/12/1998 |
| LEBANON | Accession | 10/05/1978 | 08/08/1978 |
| LESOTHO | Accession | 17/10/1975 | 15/01/1976 |
| LIBYA | Accession | 16/05/1969 | 14/08/1969 |
| LIECHTENSTEIN | Signature | 28/09/1955 | |
| LIECHTENSTEIN | Ratification | 03/01/1966 | 03/04/1966 |
| LITHUANIA | Accession | 21/11/1996 | 19/02/1997 |
| LUXEMBOURG | Signature | 28/09/1955 | |
| LUXEMBOURG | Ratification | 13/02/1957 | 01/08/1963 |
| Macao | Extension | 15/05/1997 | |
| Macao | Extension | 20/12/1999 | |
| MACEDONIA THE FYR OF | Succession | 01/09/1994 | |
| MALAGASY REPUBLIC | Succession | 17/08/1962 | |
| MALAWI | Succession | 09/06/1971 | 07/09/1971 |
| MALAYSIA | Accession | 20/09/1974 | 19/12/1974 |
| MALAYSIA | Declaration | 20/09/1974 | |
| MALDIVES | Accession | 13/10/1995 | 11/01/1996 |
| MALI | Succession | 30/12/1963 | 29/03/1964 |
| Mauritius | Extension | 03/03/1967 | 01/06/1967 |
| MAURITIUS | Succession | 17/10/1989 | 15/01/1990 |
| MEXICO | Signature | 28/09/1955 | |
| MEXICO | Ratification | 27/05/1957 | 01/08/1963 |
| MOLDOVA REPUBLIC OF | Accession | 20/03/1997 | 19/06/1997 |
| MONACO | Accession | 09/04/1979 | 08/07/1979 |
| Montserrat | Extension | 03/03/1967 | 01/06/1967 |
| MOROCCO | Signature | 31/05/1963 | |
| MOROCCO | Ratification | 17/11/1975 | 15/02/1976 |
| Nauru | Extension | 23/06/1959 | |
| NAURU | Succession | 16/11/1970 | |
| NEPAL | Accession | 12/02/1966 | |
| NETHERLANDS THE | Signature | 28/09/1955 | |
| NETHERLANDS THE | Ratification | 21/09/1960 | 01/08/1963 |
| New Guinea | Extension | 23/06/1959 | |
| NEW ZEALAND | Signature | 19/03/1958 | |
| NEW ZEALAND | Ratification | 16/03/1967 | |
| NIGER | Succession | 08/03/1962 | 01/08/1963 |
| NIGERIA | Accession | 01/07/1969 | 29/09/1969 |
| Norfolk Island | Extension | 23/06/1959 | |
| NORWAY | Signature | 28/05/1955 | |
| NORWAY | Ratification | 03/05/1963 | 01/08/1963 |
| OMAN | Accession | 04/08/1987 | 02/11/1987 |
| PAKISTAN | Signature | 08/08/1960 | |
| PAKISTAN | Ratification | 16/01/1961 | 01/08/1963 |
| PANAMA | Accession | 12/11/1996 | 10/01/1997 |
| PAPUA NEW GUINEA | Succession | 06/11/1975 | |
| PARAGUAY | Accession | 28/08/1969 | 26/11/1969 |
| PERU | Accession | 05/07/1988 | 03/10/1988 |
| PHILIPPINES | Signature | 28/09/1955 | |
| PHILIPPINES | Ratification | 30/11/1966 | 28/02/1967 |
| POLAND | Signature | 28/09/1955 | |
| POLAND | Ratification | 23/04/1956 | 01/08/1963 |
| Port Moresby | Extension | 23/06/1959 | 01/08/1963 |
| PORTUGAL | Signature | 28/09/1955 | |
| PORTUGAL | Ratification | 16/09/1963 | 15/12/1963 |
| PORTUGAL | Notification | 15/11/1999 | |
| QATAR | Accession | 22/12/1986 | 22/03/1987 |
| ROUMANIA | Signature | 28/09/1955 | |
| ROUMANIA | Ratification | 03/12/1958 | 01/08/1963 |
| RWANDA | Succession | 27/12/1990 | 27/03/1991 |
| SAUDI ARABIA | Accession | 27/01/1969 | 27/04/1969 |
| SENEGAL | Succession | 19/06/1964 | 17/09/1964 |
| Seychelles | Extension | 03/03/1967 | 01/06/1967 |
| SEYCHELLES | Succession | 24/06/1980 | 22/09/1980 |
| SINGAPORE | Succession | 06/11/1967 | 04/02/1968 |
| SLOVAK REPUBLIC | Succession | 24/03/1995 | 01/01/1993 |
| SLOVENIA | Succession | 07/08/1998 | 25/06/1991 |
| SOLOMON ISLANDS | Succession | 09/09/1981 | |
| SOUTH AFRICA | Accession | 18/09/1967 | 17/12/1967 |
| Sovereign Base Areas | Extension | 03/03/1967 | |
| SOVIET UNION | Signature | 28/09/1955 | |
| SOVIET UNION | Ratification | 25/03/1957 | 01/08/1963 |
| SPAIN | Accession | 06/12/1965 | 06/03/1966 |
| SRI LANKA | Accession | 21/02/1997 | 22/05/1997 |
| St Helena | Extension | 03/03/1967 | 01/06/1967 |
| SUDAN | Succession | 11/02/1975 | 12/05/1975 |
| SWAZILAND | Succession | 20/07/1971 | 18/10/1971 |
| SWEDEN | Signature | 28/09/1955 | |
| SWEDEN | Ratification | 03/05/1963 | 01/08/1963 |
| SWITZERLAND | Signature | 28/09/1955 | |
| SWITZERLAND | Ratification | 19/10/1962 | 01/08/1963 |
| SYRIA | Declaration | 13/04/1964 | |
| SYRIA | Succession | 03/06/1964 | |
| TOGO | Accession | 02/07/1980 | 30/09/1980 |
| TONGA | Succession | 21/02/1977 | 22/05/1977 |
| TRINIDAD AND TOBAGO | Succession | 10/05/1983 | |
| TUNISIA | Succession | 15/11/1963 | 13/02/1964 |
| TURKEY | Accession | 25/03/1978 | 28/06/1978 |
| Turks And Caicos Islands | Extension | 03/03/1967 | 01/06/1967 |
| UKRAINE | Signature | 15/01/1960 | |
| UKRAINE | Ratification | 23/06/1960 | 01/08/1963 |
| UNITED ARAB EMIRATES | Accession | 18/10/1993 | 17/01/1994 |
| UNITED ARAB REPUBLIC | Accession | 02/03/1959 | |
| UNITED KINGDOM | Signature | 26/03/1956 | |
| UNITED KINGDOM | Ratification | 03/03/1967 | 01/06/1967 |
| UNITED KINGDOM | Declaration | 03/03/1967 | |
| UNITED KINGDOM | Declaration | 03/03/1967 | 01/06/1967 |
| UNITED KINGDOM | Statement | 17/06/1980 | |
| UNITED STATES OF AMERICA | Signature | 28/06/1956 | |
| VANUATU | Accession | 26/10/1981 | 24/01/1982 |
| VENEZUELA | Signature | 28/09/1955 | |
| VENEZUELA | Ratification | 26/08/1960 | 01/08/1963 |
| VENEZUELA | Reservation | 26/08/1960 | |
| VIETNAM, REPUBLIC OF | Accession | 11/10/1982 | 09/01/1983 |
| WESTERN SAMOA | Succession | 16/10/1972 | 14/01/1973 |
| YEMEN ARAB REPUBLIC | Accession | 06/05/1982 | 04/08/1982 |
| YUGOSLAVIA | Signature | 03/12/1958 | |
| YUGOSLAVIA | Ratification | 16/04/1959 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 18/07/2001 | 27/04/1992 |
| ZAMBIA | Succession | 25/03/1970 | 23/06/1970 |
| ZIMBABWE | Succession | 27/10/1980 | 25/01/1981 |