| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Acceptance | 10/04/2003 | |
| Antilles | Extension | 01/01/1986 | |
| ARGENTINA | Acceptance | 15/10/1963 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Acceptance | 09/05/1986 | |
| BELGIUM | Acceptance | 26/10/1965 | |
| BELGIUM | Reservation | 26/10/1965 | |
| BOLIVIA | Acceptance | 10/04/1968 | |
| BRAZIL | Acceptance | 13/06/1966 | |
| BULGARIA | Acceptance | 17/06/1968 | |
| BULGARIA | Reservation | 17/06/1968 | |
| BYELORUSSIA S S R | Acceptance | 02/12/1966 | |
| BYELORUSSIA S S R | Reservation | 02/12/1966 | |
| CANADA | Acceptance | 15/06/1966 | |
| CANADA | Reservation | 15/06/1966 | |
| Channel Islands | Extension | 19/09/1961 | |
| CHILE | Acceptance | 08/12/1987 | |
| CHILE | Reservation | 08/12/1987 | |
| CHINA | Acceptance | 16/07/1984 | |
| CHINA | Reservation | 16/07/1984 | |
| COLOMBIA | Acceptance | 01/07/1983 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Acceptance | 09/04/2003 | |
| CUBA | Acceptance | 24/08/1982 | 24/08/1982 |
| CUBA | Reservation | 24/08/1982 | |
| CYPRUS | Acceptance | 27/07/1983 | |
| CZECHOSLOVAKIA | Acceptance | 07/02/1968 | |
| CZECHOSLOVAKIA | Reservation | 07/02/1968 | |
| DENMARK | Acceptance | 14/03/1962 | |
| DENMARK | Reservation | 14/03/1962 | |
| ECUADOR | Acceptance | 16/04/1969 | |
| EGYPT | Acceptance | 12/02/1963 | |
| FINLAND | Acceptance | 29/07/1960 | |
| GERMAN DEMOCRATIC REPUBLIC | Acceptance | 30/10/1974 | |
| GERMAN DEMOCRATIC REPUBLIC | Reservation | 30/10/1974 | |
| GERMANY FEDERAL REPUBLIC | Acceptance | 04/08/1960 | |
| GERMANY FEDERAL REPUBLIC | Reservation | 04/08/1960 | |
| GHANA | Acceptance | 16/12/1963 | |
| GREECE | Acceptance | 02/11/1970 | |
| HOLY SEE | Acceptance | 21/01/1986 | |
| HUNGARY | Acceptance | 14/07/1967 | |
| HUNGARY | Reservation | 14/07/1967 | |
| INDIA | Acceptance | 10/03/1961 | |
| INDONESIA | Acceptance | 04/06/1971 | |
| INDONESIA | Reservation | 04/06/1971 | |
| IRAN | Acceptance | 21/05/1974 | |
| IRAQ | Acceptance | 23/11/1960 | |
| IRELAND, REPUBLIC OF | Acceptance | 29/02/1972 | |
| Isle of Man | Extension | 19/09/1961 | |
| ITALY | Acceptance | 15/03/1963 | |
| ITALY | Acceptance | 20/06/1985 | |
| ITALY | Reservation | 20/06/1985 | |
| JAMAICA | Acceptance | 05/09/1967 | |
| JAPAN | Acceptance | 18/04/1963 | |
| JORDAN | Acceptance | 27/10/1982 | |
| JORDAN | Reservation | 27/10/1982 | |
| KOREA REPUBLIC OF | Acceptance | 17/01/1962 | |
| KOREA REPUBLIC OF | Reservation | 17/01/1962 | |
| LUXEMBOURG | Acceptance | 24/03/1972 | |
| LUXEMBOURG | Reservation | 24/03/1972 | |
| MAURITIUS | Acceptance | 07/04/1975 | |
| MEXICO | Acceptance | 19/10/1983 | |
| MEXICO | Reservation | 19/10/1983 | |
| MONGOLIA | Acceptance | 12/01/1976 | |
| MONGOLIA | Reservation | 12/01/1976 | |
| MOROCCO | Acceptance | 30/03/1977 | |
| MOROCCO | Reservation | 30/03/1977 | |
| NETHERLANDS THE | Acceptance | 29/08/1963 | |
| NETHERLANDS THE | Statement | 29/08/1963 | |
| NEW ZEALAND | Acceptance | 22/06/1961 | |
| NICARAGUA | Acceptance | 17/10/1977 | |
| NIGER | Acceptance | 17/06/1969 | |
| NORWAY | Acceptance | 10/10/1961 | |
| PAKISTAN | Acceptance | 16/04/1963 | |
| PAKISTAN | Reservation | 16/04/1963 | |
| PAKISTAN | Reservation | 18/10/1966 | |
| PHILIPPINES | Acceptance | 17/12/1962 | |
| POLAND | Acceptance | 24/07/1970 | |
| POLAND | Reservation | 24/07/1970 | |
| ROMANIA | Acceptance | 07/10/1970 | |
| ROMANIA | Reservation | 07/10/1970 | |
| SINGAPORE | Acceptance | 19/07/1973 | |
| SINGAPORE | Reservation | 19/07/1973 | |
| SOVIET UNION | Acceptance | 01/07/1966 | |
| SOVIET UNION | Reservation | 01/07/1966 | |
| SPAIN | Acceptance | 21/05/1984 | |
| SWEDEN | Acceptance | 08/09/1961 | |
| SWITZERLAND | Acceptance | 16/09/1969 | |
| SWITZERLAND | Reservation | 16/09/1969 | |
| SYRIA | Acceptance | 18/12/1989 | |
| THAILAND | Acceptance | 15/05/1962 | |
| THAILAND | Reservation | 15/05/1962 | |
| TUNISIA | Acceptance | 28/12/1967 | |
| TURKEY | Acceptance | 26/06/1978 | |
| TURKEY | Reservation | 26/06/1978 | |
| UKRAINE | Acceptance | 05/10/1966 | |
| UKRAINE | Reservation | 05/10/1966 | |
| UNITED KINGDOM | Signature | 01/12/1959 | |
| UNITED KINGDOM | Ratification | 19/09/1961 | |
| UNITED KINGDOM | Acceptance | 19/09/1961 | |
| UNITED KINGDOM | Reservation | 19/09/1961 | |
| UNITED KINGDOM | Communication | 13/07/1962 | |
| UNITED KINGDOM | Declaration | 10/12/1965 | |
| UNITED KINGDOM | Withdrawal Res. | 11/06/1985 | |
| VIETNAM | Acceptance | 31/07/1969 | |
| YUGOSLAVIA | Acceptance | 14/10/1963 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 05/02/2002 | 27/04/1992 |