It's probably true that they are. This provision is included in the CETA agreement. I suspect it may be something that the Europeans wanted, though I'm not certain of that.
What happens now under the Coasting Trade Act is that any movements between Canadian ports have to be done in Canadian flagged ships. Essentially, the Canadian shipping lines are big, either in the coasting trade or in the Great Lakes and St. Lawrence Seaway. Canada Steamship Lines and Algoma, some of those companies, are the obvious ones.