Article R225-34-2 of the French Commercial code
To serve on the Board of Directors and its committees, the directors elected by the General Meeting of Shareholders pursuant to Article L. 225-23 and the directors elected by the employees or appointed pursuant to Article L. 225-27-1 have preparation time which may not be less than fifteen hours nor more than half the legal monthly working time per meeting of the Board of Directors or the committee in question….