As with most things on the Great Lakes, it's not really simple and straightforward.
First of all, we have to make a distinction between the salties and the lakers. Through the political process, on the U.S. side at least, the lakers are not subjected to the same requirements that the salties are. That is a cause for concern both in terms of equity and.... Although the lakers, which operate completely within the lakes, cannot bring new invasive species from outside, they can spread existing ones. So there is concern about that.
The hope is that both countries are still requiring ballast water exchange in the open waters for the salties. There has not been a new invasive species detected since 2006, which is cause for encouragement. I think much more needs to be done to totally harmonize and make sure these are strictly enforced.
We're at a period.... It's moving in the right direction, not at the same pace on both sides and applying to all ships, but we're at least moving in the right direction, and we have to continue to push.