The EPA developed an updated Tabletop Exercise Tool for Water Systems: Emergency Preparedness, Response, and Climate Resiliency (TTX Tool) to assist those interested in planning and facilitating tabletop exercises that focus on Water Sector-related issues. The tool includes fully-customizable materials users can modify, allowing them to conduct a tabletop exercise to meet their specific needs. The TTX Tool contains five climate change scenarios that provide an opportunity for utilities to consider and implement long-term planning measures in order to plan for the potential impacts of climate change.