The new WHO Guidelines on Sanitation and Health summarize the evidence on the effectiveness of a range of sanitation interventions and provide a comprehensive framework for health-protecting sanitation, covering policy and governance measures, implementation of sanitation technologies, systems and behavioural interventions, risk-based management, and monitoring approaches. Critically, the guidelines articulate the role of the health sector in maximizing the health impact of sanitation interventions. The guidelines also identify gaps in the evidence-base to guide future research efforts to improve the effectiveness of sanitation interventions. (French, Spanish, Russian, Arabic in production)