Mainstream institutions of the Syrian opposition based in Turkey or Qatar like the Syrian National Council and the National Coalition for Syrian Revolutionary and Opposition Forces have consistently rejected the idea of federalization, while in particular Kurds in Syria have promoted the idea.
Lembaga umum yang merupakan oposisi Suriah yang berbasis di Turki atau Qatar seperti Dewan Nasional Suriah dan Koalisi Nasional untuk Revolusi Suriah dan Pasukan Oposisi secara konsisten menolak gagasan federalisasi, sementara orang Kurdi khususnya di Suriah sangat mendukung ide tersebut.