Triple-S is an initiative that seeks to identify sustainable approaches to water delivery and access by departing from project-based, one-off and stand-alone implementation of water systems. It is a six-year multi-country learning initiative that aims to contribute to the realisation of indefinitely sustainable water services delivered at scale. In collaboration with select national partners, Triple-S will support a paradigm shift at the operational level for decentralised service delivery and will bring about a re-appraisal of the design and planning mechanisms of development assistance to the rural water supply sector.