In addition to the President of the General Council and the Prefect, the departmental investment harmonisation conference comprises:
1° Three mayors of communes with fewer than 2,000 inhabitants, appointed by the college of mayors of communes with fewer than 2,000 inhabitants;
2° Three mayors of communes with more than 2,000 inhabitants, appointed by the college of mayors of communes with more than 2,000 inhabitants;
3° Two presidents of groups of communes, appointed by the college of presidents of groups of communes.