Save the constitutions of Oromia and Tigray, the remaining seven sub-national constitutions were adopted after the promulgation of the federal constitution. Accordingly, the first SNNPR constitution was adopted in 1995 as per the authorization it gets from Art 50(5) and Art 52(2) (b) of the federal constitution. This constitution was active until it was finally replaced by the revised SNPPR constitution of 2001. As it holds true for other regional constitutions, the revision was the need to constitutional zed principles of separation of power, accountability and transparency in government acts, to organize the structure and administration of state in a way that can facilitate local government, and to create a situation that eases socio-economic development in the region. At the same time, it should also be noted that there are scholars who argue that the reason for the revision of sub-national constitutions is the internal problem of EPRDF. Whatever the case, starting from the inception of a federal system in Ethiopia SNNPR adopted only two constitutions.