There aren’t any Federal laws or regulations preventing people from practicing rainwater harvesting. There are only seven states that have restrictions and or water rights permit requirements for rainwater harvesting. Rainwater harvesting utilizes a building rooftop for collection and is conveyed into storage through either dry or wet conveyance. Once rainwater hits the ground, it’s no longer defined as rainwater and is defined as stormwater or groundwater depending on the type of contaminants that enter the water. Water diversion, groundwater collection, well water, groundwater, even stormwater collection are all considered legally different than rainwater and...