This policy note outlines Yemen's main water security challenges and identifies a series of recommended interventions that take into account the country's uncertain future trajectory. The scarcity of water, coupled with its variability, has been one of the defining characteristics of Yemen's development over centuries. The protracted armed conflict, along with the future impacts of climate change, requires new approaches to facilitate the transition from the needed humanitarian assistance to incorporate a longer term development agenda that can respond to the growing demand for water from all users. As such, the policy note considers a scenario-based approach for exploring different investment options that allow flexibility to respond to the deep uncertainty around the country's future water security and governance. The recommendations are framed around the institutions, infrastructure and information needed to ensure equitable, efficient, and sustainable development of water within the potential future scenarios. This framework offers opportunities to lay the foundation for a more sustainable and resilient future that can respond to uncertainty, and build on the strength and legitimacy of Yemen's traditional practices and institutions at the local level, while gradually moving to basin-level and nationwide interventions as conditions allow. While the complex array of interventions required is challenging, the policy note also identifies a series of "no regrets" interventions for immediate implementation. The analysis presented in this policy note is based on the results of the report co-titled "Charting the Course: A Water Security Diagnostic for Yemen", which includes full references for further consultation.