In its final written submission to the National Energy Board (NEB) panel, the government said that that firm has not provided the province with adequate information on proposed spill prevention and response.
The government said it plans to continue project evaluation based on the company’s ability to meet the five conditions set out in 2012.
Work on the expansion project will be commenced after company completes the environmental review process and a recommendation is submitted by the NEB.
Additional conditions include marine oil spill response, prevention and recovery systems for BC’s coastline and best practises for land oil spill prevention, response and recovery systems.
Kinder Morgan said in a statement: "The conditions related to world-leading marine oil spill response, recovery and prevention, addressing Aboriginal treaty rights and BC receiving its "fair share" are all conditions that require multiple parties to come to the table and work together.
"If approved by the NEB, Trans Mountain is confident that the construction and long-term operation of the project will be done to the highest standards of environmental performance, support Aboriginal communities and provide lasting benefits for British Columbians, Albertans and Canadians."
The upgrade project includes construction of 987km pipeline, new and modified facilities including pump stations and tanks, and the reactivation of 193km of existing pipeline.
The expansion would increase the capacity of the pipeline to 890,000 barrels per day.
However, Alberta premier Rachel Anne Notley has supported the project.
Notley said: "Earlier today, I wrote to the National Energy Board in support of the Kinder Morgan Trans Mountain Pipeline expansion project.
"Our government believes this project is good for Albertans and good for all Canadians.
"It will create jobs, spur economic growth, and help fund our province’s transition to a greener, less carbon intensive economy on many levels.
