Metropolitan Municipality Law was introduced in 1989 and the municipal governance was split between metropolitan municipality and district municipalities. Adana Municipality then became the Metropolitan Municipality and two new district municipalities were founded; Seyhan and Yüreğir. Karaisalı was annexed to the city in 2006, Çukurova and Sarıçam districts were founded in 2008 by the partitioning of Seyhan and Yüreğir districts respectively. On 3 February 2012, Karataş Municipal Council accepted a motion to amalgamate the municipality with Adana, hence Karataş will become the sixth district of the city after the transition process is completed.