Addis Ababa Water and Sewerage Authority Proclamation No. 68/1963 is hereby repealed and proclamation no. 10/87 was established with the Addis Ababa Water and Sewerage Authority Proclamation. Since the establishment of the Authority's authority since its inception 10/87, the Water Supply and Sewerage Service has been utilized by using water sources and establishing a drainage system with stakeholders, providing clean water supply and modern sewage disposal equivalent to the city's rapid growth.