The Handbook for Climate Resilient Infrastructure Officer (CRIO) is a component of the Knowledge Module on PPPs for Climate-Resilient Infrastructure and aims to provide tools and knowledge on how to integrate climate resilience throughout the PPP project cycle. The Climate Resilient Infrastructure Handbook has been revised in 2025 to provide infrastructure and PPP practitioners with the most up-to-date guidance, tools, and best practices for integrating climate resilience into all stages of the infrastructure lifecycle, from planning and design to financing, construction, and operation.