The province maintains the federal carbon tax is unconstitutional because the federal government is applying a tax unevenly across Canada based on each province’s climate change plan.
WATCH BELOW: Coverage of the carbon tax debate in Canada
The province said it looks forward to presenting this argument before the Saskatchewan Court of Appeal.
It has also asked Ottawa to delay imposing the federal carbon tax plan until the court has ruled on this case.
Ottawa said in court filings there is no constitutional requirement for federal laws to operate equally throughout Canada.
It goes on to state that the law isn’t an intrusion into provincial jurisdiction, and implements the “polluter pays” principle which is “firmly entrenched in environment law in Canada.”
Ontario has joined Saskatchewan’s case as an intervener while also filing its own legal challenge.
In October, Saskatchewan’s environment minister tabled legislation to implement the province’s its own climate change plan into action next year.