Article L2231-4 of the French Labour Code

Conventions and agreements as well as company or establishment agreements are drafted in French.

Any clause drafted in a foreign language cannot be invoked against an employee who is prejudiced by it.

Original in French 🇫🇷

Article L2231-4

Les conventions et accords ainsi que les conventions d’entreprise ou d’établissement sont rédigés en français.

Toute clause rédigée en langue étrangère est inopposable au salarié à qui elle ferait grief.