Night Work Conventions are International Labour Organization Convention conventions regulating the rights of night workers. They were specifically aimed at young persons, women or people in specific types of employment (industrial, non-industrial or bakeries) and conceived between 1919 and 1948. A more general instrument (not addressing young people however) was signed in 1990.

Night Work Conventions
C4, C6, C20, C41, C79, C89, C171
Signed1919, 1925, 1934, 1946, 1948, 1990
Effective1921-1995
Condition2 ratifications
DepositaryDirector-General of the International Labour Office
LanguagesFrench and English

Ratifications

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An overview of ILO conventions and ratifications is shown below:

ILO code Field conclusion date entry into force closure for signature Parties
(May 2011)
Denunciations
(May 2011)
revising convention(s) text and ratifications
C4 Women 28 November 1919 13 June 1921 N.A. 27 31 C41, C89 Text, ratifications
C6 Young persons in industry 28 November 1919 13 June 1921 N.A. 50 9 C90 Text, ratifications
C20 Bakeries 8 June 1925 26 May 1928 N.A. 9 8 Text, ratifications
C41 women (revised) 19 June 1934 22 November 1936 27 February 1951 15 23 C89 Text, ratifications
C79 young persons (non-industrial) 29 October 1946 29 December 1950 20 0 Text, ratifications
C89 women (revised) 9 July 1948 27 February 1951 46 21 Text, ratifications
C90 young persons (industrial) (revised) 10 July 1948 12 June 1951 51 0 Text, ratifications
C171 general 26 June 1990 4 January 1995 15 0 Text, ratifications
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