• 1. Ballast


Vessels must use ballast water for safety purposes to provide adequate stability, trim, propulsion, maneuverability, and hull stress control. Recognizing these constraints, the marine industry will do everything within its power, consistent with safety and stability, to decrease the spread of known unwanted non-indigenous species.

The States of Minnesota and Wisconsin both require Ballast permits for any commercial vessel transiting waters of those states. Best management practices including the U.S. EPA general permit for vessel discharges must be adhered to. Specific Best Management Practices (BMPs) have been agreed to by U.S. and Canadian authorities for ships on Lake Superior and must be part of the applications for these permits.

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