TORONTO, June 28 (Reuters) - Ontario’s Court of Appeal ruled on Friday that Canada’s federal carbon tax is constitutional after a challenge from the province’s Conservative government.

In April, Canada’s federal government imposed a carbon tax on provinces without a carbon pricing system, which was opposed by several provinces including Ontario, Manitoba, Saskatchewan and New Brunswick.

Ontario announced in August 2018 it would challenge the carbon tax, saying it represented an unconstitutional overstepping on provincial authority. (Reporting by Tyler Choi)