According to the Water Supply and Sanitation Act No. 5 of 2019, RUWASA is mandated to ensure rural communities in Tanzania mainland have access to clean and safe water supply services. Furthermore, RUWASA is also obligated to provide water services to specific urban areas declared by the Minister responsible for water services. 

Water services in rural areas are managed and operated by Community Based Water Service Organizations (CBWSOs) under supervision of RUWASA at the District level. In order to ensure sustainability of water supply services, CBWSOs collect water charges from communities as discussed and agreed in respective organs.

Moreover, CBWSO is responsible in making maintenance of the project so as to assure community with access to clean and safe water supply on a daily basis.