A bill for an act relating to water quality standards, including by providing for the regulation of animal feeding operations, providing penalties, and making penalties applicable.

HF 368 updates Iowa's water quality laws to regulate large livestock operations. It specifically requires medium and large concentrated animal feeding operations (CAFOs) - like major dairy or hog farms - to obtain federal-style NPDES permits for managing manure and wastewater. The bill establishes state rules for manure storage, treatment, and facility inspections, aligning with federal Clean Water Act standards. These permits aim to prevent pollution from runoff into rivers and streams, directly affecting agricultural operations that meet the CAFO size definitions.