 Providing access to water, sanitation and hygiene or wash upholds the health, dignity and well-being of communities. It is also a critical humanitarian service that saves lives during emergencies. IOM Wash has a global reach and responds to sudden and slow-onset disasters due to man-made or natural hazards which can be compounded by additional factors such as disease outbreaks. IOM supports migrants and nearby host communities in various settings including in camps and camp-like settings, transit centres and points of entry and institutions such as schools and healthcare facilities. To best serve the people of concern, we work with other humanitarian sectors and to encourage quality programming. All IOM wash interventions are guided by four strategic principles. In the first phase of an emergency, we aim to deliver immediate life-saving wash in accordance with the sphere standards, whilst simultaneously building systems that promote long-term development and sustainability. We aim to control the spread of disease and preserve the health of populations and the focus on those who are severely affected and hard to reach. We also advocate for longer-term outcomes through effective wash governance and sustained behaviour change. We ensure interventions are appropriate. Accordingly, wash programmes make use of technologies and approaches compatible with the needs, knowledge and circumstances of affected populations. Ensuring appropriate responses requires consideration of cross-cutting themes and can include, for example, cash-based interventions to invest in a local economy and empower communities. IOM wash infrastructure and services are planned to be scalable to allow upgrades or expansions to deliver durable solutions. We empower target populations to take ownership of wash programmes, promoting long-term resilience and sustainability whilst supporting the operationalisation of the humanitarian development piece Nexus. Wash requires technical expertise in water supply and treatment, hygiene promotion, excreta disposal, vector control, drainage and waste management, as well as the ability to work with affected populations to ensure their specific needs are met, environmental impacts are considered and that systems are built that support long-term development. IOM will continue to improve its wash programmes to support human health, well-being and dignity of the communities we serve.