The architecture of the water supply andsanitation subsectors in Kenya has undergone significantchange in the last decade, in response to a slowdeterioration of urban services through the 1980s and'90s. Initiated with a new water act in 2002,significant policy revision and restructuring ofinstitutional roles is still ongoing and will need to bealigned with the new Constitution of Kenya 2010. Most of thereform emphasis has been in the water supply subsectors,especially urban, but sanitation is now regaining emphasiswith a new policy published in 2007 and a strategy andinvestment plan in development. These reforms of theenabling environment are beginning to yield impacts in thecoverage and quality of services. Kenya's challenge isto finalize the reform of enabling aspects such asstrategies and investment plans, further clarifying rolesand responsibilities, at the same time as significantlyscaling up resources and systems for implementing thedevelopment of new services on the ground. Finally, in termsof checks and balances, while the monitoring and evaluationarchitecture is elaborate, greater use of the findingscaptured by information systems and reports is needed todrive performance improvements. The African MinistersCouncil on Water (AMCOW) Second Country Status Overview(CSO2) has been produced in collaboration with theGovernment of Kenya and other stakeholders.