| (Source: ILOLEX - 30. 11. 2009) |
| Country | Ratification date | Status |
| Albania | 17:03:1932 | denounced on 30:06:1999 |
| Argentina | 14:03:1950 | ratified |
| Australia | 18:04:1931 | denounced on 02:04:2002 |
| Austria | 29:12:1927 | ratified |
| Bangladesh | 22:06:1972 | ratified |
| Belgium | 15:02:1928 | denounced on 14:08:1998 |
| Brazil | 18:06:1965 | ratified |
| Bulgaria | 29:11:1929 | ratified |
| Colombia | 20:06:1933 | ratified |
| Cuba | 07:09:1954 | ratified |
| Czech Republic | 01:01:1993 | ratified |
| Denmark | 18:05:1955 | ratified |
| Finland | 05:04:1929 | ratified |
| France | 13:01:1932 | ratified Conditional ratification |
| Hungary | 03:02:1931 | ratified |
| India | 14:01:1928 | ratified |
| Ireland | 05:07:1930 | ratified |
| Japan | 08:10:1928 | ratified |
| Luxembourg | 16:04:1928 | ratified |
| Malta | 09:06:1988 | ratified |
| Mexico | 09:03:1938 | ratified |
| Myanmar | 14:01:1928 | ratified |
| Netherlands | 13:09:1927 | ratified |
| New Zealand | 29:03:1938 | denounced on 02:06:1982 |
| Nicaragua | 12:04:1934 | ratified |
| Norway | 28:01:1957 | ratified |
| Pakistan | 14:01:1928 | ratified |
| Panama | 19:06:1970 | ratified |
| Slovakia | 01:01:1993 | ratified |
| Sweden | 28:01:1957 | ratified |
| United Kingdom | 16:09:1927 | ratified Conditional ratification |
| Uruguay | 06:06:1933 | ratified |
| Bolivarian Republic of Venezuela | 20:11:1944 | ratified |
| Ratified: 27 | Conditional ratification: 2 | Declared applicable: 0 | Denounced: 4 |
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