Following an emergency event, communities need access to clean water for various daily activities and medical purposes. EPA partnered with WaterStep to develop a modular, mobile water treatment system known as Water on Wheels – Emergency Mobile Water Treatment System (WOW Cart). The WOW Cart is an inexpensive and versatile water treatment system about the size of a shopping cart that has been deployed in response to hurricanes, tornadoes, and other disasters. Multiple deployments and discussions with stakeholders have highlighted the lack of a pre-approval process for short-term emergency drinking water systems among many states. This may limit the ability to use such capabilities and get clean water to affected areas quickly. This webinar will provide an overview of the WOW Cart and the Association of State Drinking Water Administrators will discuss their survey of state programs on pre-approval of short-term emergency drinking water systems. It will discuss Kentucky's Lily Pad program, including guidelines for acceptance and monitoring of systems, pre-deployments, and training water utility staff in the operation of these systems.