Only about 100 000 ha of the planned 375 000 ha has been irrigated so far. Approximately 2 000 ha is added each year. The basin is governed by two major agreements, both signed in Nouakchott, Mauritania on 11 March 1972: the Convention Concerning the Status of the Senegal River (Convention Relative au Statut du Fleuve Senegal) (“Senegal River Convention”), and the Convention Establishing the Organization for the Development of the Senegal River (Convention Portant Creation de I 'Organisation pour la Mise en Valeur du Fleuve Senegal) (“OMVS Convention”).