This report, published by UNICEF and WHO, provides a comprehensive analysis of the progress on drinking water, sanitation, and hygiene (WASH) in schools globally, from 2000 to 2021. It focuses on the Sustainable Development Goals (SDGs) related to WASH, highlighting the progress made and the challenges that remain in ensuring universal access to basic WASH services in schools. The report utilizes service ladders to benchmark progress and presents data to underscore the need for accelerated efforts to meet the 2030 targets. It also discusses the importance of preparing schools for future pandemics through improved WASH facilities. The intended audience includes policymakers, educational administrators, and organizations involved in global health and education.