Lalong takes over from from Kashim Shettima, whose tenure as governor of Borno state ends on 29 May, 2019.
Shettima confirmed Lalong’s appointment in a communique read at the end of the forum’s meeting in Kaduna, northwest Nigeria.
The 19 governors, at the meeting, also agreed to set up a joint financial institution that will galvanize rapid socio-economic development within the region.
According to the communique, the governors also resolved to meet with President Muhammadu Buhari over the security challenges in the region.
In his acceptance speech, Lalong thanked his 18 colleagues for the gesture bestowed on him.