I don't think the clause speaks to the scope of Parliament's authority so much as it speaks to how this act is to be constructed. We're not talking about a provision that's found in the FTAs themselves, in our other FTAs. They're found in Canada's other FTA-implementing legislation. It's a provision just to make clear that where this act speaks and where it doesn't speak, it doesn't interfere with the ability of Parliament to take action to give effect to Canada's obligations under the free trade agreement or the related agreements. It's just a clarifying provision of construction.
On June 1st, 2010. See this statement in context.