An agreement concluded at branch level defines the method applicable to negotiation at company level. This agreement is binding on companies which have not concluded an agreement or convention in application of article L. 2222-3-1. If an agreement mentioned in the same article L. 2222-3-1 is concluded, its stipulations replace the stipulations of this branch agreement.
Unless the agreement provided for in the first paragraph of this article stipulates otherwise, failure to comply with its stipulations shall not render null and void the agreements concluded within the company, provided that the principle of fairness between the parties is respected.