Those schemes may take into account existing schemes and structures as appropriate, and shall be based on the criteria laid down in Annex IV.
Sna scéimeanna sin, féadfar a thabhairt san áireamh nuair is iomchuí scéimeanna agus struchtúir ar ann dóibh cheana, agus is ar na critéir a leagtar amach in Iarscríbhinn IV a bhunófar na scéimeanna.