The interregional agreement exercises the competences listed in the founding decision on behalf of the member regions. It ensures the coherence of the programmes of the member regions.As such, it may conclude plan contracts with the State in place of the regions that make it up, within the limits of the competences that have been transferred to it.
The interregional agreement replaces the institutions of common utility grouping the member regions and defined by article L. 5611-1. These institutions are automatically dissolved.