British Columbia (Attorney General) v. Lafarge Canada Inc., 2007 SCC 23
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(Constitutional law / Division of powers / Federal paramountcy)
Lafarge wanted to build a shipping facility on the Vancouver waterfront. The project was approved in principle by the City of Vancouver and the Vancouver Port Authority, a federal agency which owned the lands. A group of ratepayers challenged this approval, arguing that the Port Authority had to obtain a permit from the City, which it did not do. The Court upheld the Port Authority's power to approve the facility, based on the fact that shipping and navigation is a federal matter under the Constitution.
Majority/Concurring: 6/1