The main purpose of this legislation, known as the Plastic Pellet Free Waters Act, is to address pollution caused by plastic pellets and other pre-production plastic materials. It aims to protect waterways from contamination by establishing strict regulations on the discharge of these materials from various facilities involved in their production, packaging, and transport. Key provisions of the Act require the Environmental Protection Agency (EPA) to create rules that prohibit the release of plastic pellets and related materials into wastewater and runoff from specific facilities.