Ratifications of C031 - Hours of Work (Coal Mines) Convention, 1931 (No. 31)
Date of entry into force:
[Withdrawn instrument - By decision of the International Labour Conference at its 88th Session (2000)]
2 ratifications- Denounced: 0
| |
Number
| Country | Date | Status | Note |
| Argentina | 24 Sep 1956 | Not in force | Instrument not in force |
| Spain | 29 Aug 1932 | Not in force | Instrument not in force |