The ministries of Environment and Natural Gas Development now have environmental assessment certificates for two pipelines and one export facility.
The Westcoast Connector Gas Transmission pipeline and the Prince Rupert Gas Transmission pipeline would start near Fort St. John and Hudson's Hope, respectively, and end hundreds of kilometres away on the coast in Prince Rupert.
Capital costs for the proposed projects are expected to hit $7.5 billion and $5 billion.
The Pacific NorthWest LNG export facility would be built in the Port of Prince Rupert and its estimated capital cost is $11.4 billion.
The Environment Ministry says the projects still need permits from all three levels of government, and the LNG export facility is still subject to a federal environmental assessment.