The Canada Energy Regulator (CER) has issued a notice allowing Trans Mountain Corp. to resume work on its Trans Mountain Expansion (TMX) oil pipeline project.

The company was ordered in April to halt work on a section of the project in Burnaby, British Columbia, for four months to protect hummingbird nests.

The CA$12.6 billion (US$10.17 billion) Trans Mountain Expansion project will nearly triple capacity of the pipeline, which runs from Edmonton in Alberta to the coast of British Columbia, to ship 890,000 bbl/d of crude and refined products when completed late 2022.