New regulations requiring all ocean-going ships to flush out ballast tanks with saltwater before entering the Saint Lawrence Seaway should help stop the introduction of new invasive species in the Great Lakes, environmental groups said.
The rules, announced Wednesday by the U.S. Department of Transportation, will require all ocean-going vessels to flush out ballast tanks with saltwater 200 nautical miles from any North American shore before entering the Saint Lawrence Seaway.
Department of Transportation officials said the new rules will be in effect until the U.S. Coast Guard finalizes its own ballast regulations.
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