All schools nationwide are required to participate in the WASH in Schools (WinS) monitoring following the WinS Minimum Requirement (MR) Guidelines. The WinS monitoring is an annex to the annual school census, which is the basis for the Cambodian Educational Management Information System (EMIS). On the basis of the MR Guidelines annual data, this report provides an overview of the status of WinS in the Kingdom of Cambodia, tracks progress over three years of WinS implementation and provides information on challenges.