Article R5214-1-1 of the French General Code of Local Authorities
When a syndicate of communes is included in its entirety within the perimeter of a community of communes called upon to exercise all the competences of this public establishment, or when the perimeter of the community of communes coincides with that of a pre-existing syndicate of communes, the latter is dissolved ipso jure. The decree establishing the community of communes, or modifying its perimeter or competencies, records the dissolution of…