The purpose of the Resilient WaterInfrastructure Design Brief is to guide users on howresilience can be built into the engineering design of theirproject. With a focus on the three natural hazards mostlikely to affect water and sanitation infrastructure(droughts, floods, and high winds from storms), the documentprovides a six-step process to help users address weatherand climate related challenges that are most likely toaffect an infrastructure component at some point in itsoperational lifetime. In order to achieve both systems levelresilience and infrastructure level resilience, this designbrief should be used in tandem with other World Bankpublications, such as the 2018 guidance document “Buildingthe Resilience of WSS Utilities to Climate Change and OtherThreats: A Road Map,” which emphasizes systems levelresilience and analysis. The design brief highlights therelationship between these two documents and the uniquefunction that each serves in improving overall resilience inthe water sector. It also includes guidance for users toincorporate resilience design principles into projects’appraisal documents and a sample module/task description forapplying the two documents to an engineering design orfeasibility study terms of reference.