County regulation of gray water discharges from commercial houseboats in certain counties provided.

HF 430 shifts regulatory authority for gray water discharges (non-toilet wastewater) from commercial houseboats to specific Minnesota counties. The bill prevents the state Pollution Control Agency from regulating these discharges in St. Louis, Koochiching, and Lake counties, requiring each county to establish its own rules instead. County regulations must comply with the federal Clean Boating Act of 2008 and other applicable federal laws. This bill directly affects commercial houseboat operators and county governments in those three locations, changing who oversees this aspect of water quality.