The effect of such an amendment to the Regulations would be to apply CEAA to proposed projects for the construction or alteration of international bridges or tunnels. As a result, the environmental effects of such projects would be required to be considered before irrevocable decisions are made. Transport Canada would be the responsible authority for ensuring that the environmental assessment is conducted.

For more information see: http://www.ceaa-acee.gc.ca/013/pn080201_e.htm