Failure to pay a 25% increase in salary for each hour of overtime worked in excess of one tenth of the duration stipulated in the contract, in breach of the provisions of articles L. 3123-21 and L. 3123-29 or of II of article 14 of law no. 2000-37 of 19 January 2000 relating to the negotiated reduction of working hours, is punishable by a fourth-class fine.
Contraventions give rise to as many fines as there are unduly employed employees.