In the 5th General Congress of UCLG-MEWA (United Cities and Local Governments Middle East and West Asia Section), which was held between 19 and 21 April 2016 with the  hosting of Gaziantep Metropolitan Municipality, Union of Turkish World Municipalities (TDBB) was elected to Administrative Board Membership.

During the Congress, where Fatma Şahin (Mayor of Gaziantep Metropolitan Municipality) was elected as the new President of UCLG-MEWA, in addition to TDBB, many TDBB member municipalities, especially Kocaeli Metropolitan Municipality, were elected to Administrative Board and Council memberships.