The Arusha Urban Water Supply and Sewerage Authority (AUWSA), is a legally established entity responsible for the overall operation and management of water supply and sewerage services in Arusha City. AUWSA was established under the Water Works Act CAP 272 amendment (Act No. 8 of 1997), now repealed by Water Supply and Sanitation Act No. 12 of 2009. It was declared a fully autonomous entity by order of the Minister responsible for Water Affairs in January 1998.