This report, published by the Food and Agriculture Organization of the United Nations and the World Health Organization, examines the safety and quality of water use and reuse in the production and processing of dairy products. It addresses codex provisions, microbiological concerns, and risk assessment approaches to inform water reuse practices. The document is aimed at professionals in the dairy industry, focusing on ensuring safe and sustainable water management. It provides guidelines for hazard control, monitoring, and validation of water reuse scenarios, enhancing both food safety and environmental sustainability.