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 not to do anything likely to compromise its faithful implementation. They shall guarantee such performance only to the extent determined by the agreement.