Ethiopia's mainly ethnic Somali region is now officially the Somali state and a new flag introduced as a new president Mustafa Omer took over the office in the administrative capital Jigjiga.
A projection of the flag of the Republic of Somalia replaces the image of a camel that was introduced in the nineties.
The new leader promised freedom of expression in a region that was covered in violations of human rights under the ten-year government of Abdi Iley.
Omer has asked for forgiveness but has pledged respect for human rights.
A meeting by the executive and council members of the Ethiopian Somali Democratic People's Party and clan elders in Addis Ababa on Wednesday unanimously nominated Mr Mustafa Muhumed Omer as the acting president of the Somali state.
Mr Omer will lead the region as an actor to the elections in May 2020.
The seat was released following the resignation of Abdi Iley after a stalemate with the federal government that led the Ethiopian national army to take over the security of the Somali region.