In accordance with United Nations Centre for Human Settlements and Ford Foundation (1998), after privatization in
1994, when Multinet Africa Co. Limited was awarded the sole contract, there was a remarkable improvement in solid waste management with up to 75% of the wastes generated in privatized zones being collected. In recent years, the total number of registered private companies in the city has increased to 49 (Kaseva & Mbuligwe, 2003), but 12 contractors (mostly CBOs) were not operating due to financial constraints (Kirama, 2013). According to the Dar es Salaam City Council, by 2010 only 23 private companies were involved under the franchising system and 44 out of 73 (60%) wards in the city are being serviced under this system. Even after introducing private sector participation in solid wastes collection
only 38.5% of 29,764 tons generated per week was collected and transported to the Dar es Salaam city dumpsite. Inadequate collection and disposal was because of inadequate budget allocation for management of wastes, poor institutional capacity and infrastructures. Other factors include poor logistics, management skills, technology and financial resources and high rate of urbanization. The objective of the research is to evaluate effectiveness of private sector participation in solid waste collection and transportation in Dar es Salaam City.