Bart F that article does not say the Liberal government, at the time the federal government, intervened to change regulations.

"The NEB said it expanded the scope of the review of Energy East and the related Eastern Mainline projects after receiving 820 responses to its call for input, including 700 form letters.

“Given increasing public interest in GHG emissions, together with increasing governmental actions and commitments (including the federal government’s stated interest in assessing upstream GHG emissions associated with major pipelines), the Board is of the view that it should also consider indirect GHG emissions in its NEB Act public interest determination for each of the projects,” the NEB said in a letter to proponent TransCanada Corp."