Article L7343-42 of the French Labour Code
I.-Without prejudice to the effects of homologation, the application of collective sector agreements is compulsory for all signatories or members of the signatory organisations. II.-A distribution centre which resigns from the signatory organisation after the sector agreement has been signed remains bound by the agreement. III-The organisations representing the employees of the platforms and the organisations representing the platforms, or the platforms taken individually, bound by an agreement, are required…