| (Source: ILOLEX - 9. 2. 2010) |
| Country | Ratification date | Status |
| Bahamas | 25:05:1976 | ratified |
| Bolivia | 31:01:1977 | ratified |
| Brazil | 24:03:1969 | ratified |
| Central African Republic | 09:06:1964 | ratified |
| Democratic Republic of the Congo | 05:09:1967 | ratified |
| Costa Rica | 27:01:1966 | ratified |
| Ecuador | 03:10:1969 | ratified |
| Georgia | 21:10:1997 | ratified |
| Ghana | 18:06:1964 | ratified |
| Guatemala | 13:06:1989 | ratified |
| Guinea | 12:12:1966 | ratified |
| Israel | 15:01:1964 | ratified |
| Italy | 27:12:1966 | ratified |
| Jamaica | 04:01:1966 | ratified |
| Jordan | 07:03:1963 | ratified |
| Kuwait | 23:04:1963 | ratified |
| Madagascar | 01:06:1964 | ratified |
| Malta | 09:06:1988 | ratified |
| Republic of Moldova | 12:08:1996 | ratified |
| Nicaragua | 01:10:1981 | ratified |
| Niger | 23:11:1964 | ratified |
| Panama | 04:06:1971 | ratified |
| Paraguay | 20:02:1969 | ratified |
| Portugal | 09:01:1981 | ratified |
| Romania | 06:06:1973 | ratified |
| Senegal | 13:11:1967 | ratified |
| Spain | 08:05:1973 | ratified |
| Sudan | 22:10:1970 | ratified |
| Syrian Arab Republic | 11:12:1964 | ratified |
| Tunisia | 14:04:1970 | ratified |
| Bolivarian Republic of Venezuela | 06:09:1983 | ratified |
| Zambia | 02:12:1964 | ratified |
| Ratified: 32 | Conditional ratification: 0 | Declared applicable: 0 | Denounced: 0 |
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