Modifies permit requirements and exemptions in relation to Missouri fertilizer and clean water laws

This bill updates Missouri's fertilizer and clean water laws by replacing two existing sections with new rules focused on industrial wastewater and sewage infrastructure. It requires the state commission to create regulations for treating industrial waste before it reaches water sources and mandates specific nutrient management standards for land application, excluding concentrated animal feeding operations. Additionally, the legislation clarifies when operating and construction permits are necessary for discharging contaminants or modifying sewage systems, while listing specific small-scale sewer projects that do not require a permit.