TORONTO - Anti-carbon tax stickers will stay up on gas pumps as "a matter of transparency" while Ontario continues its court fight against the federal levy, the province's energy minister said Monday.

Greg Rickford defended the Progressive Conservative government's controversial decal as a way to provide people with important information on the carbon price, a measure he referred to as "job-killing."

A government law forcing gas station owners to post the stickers came into effect at the end of August, weeks before the start of the federal election, and they will stay up even now that the vote is over, Rickford said.

"The sticker campaign will certainly remain," he said. "We believe that as a matter of transparency consumers have the right to know where those cost pressures are. Look, over the course of time, retailers ... have not hesitated in many instances to put a pie chart on their gas pumps to let people know where those costs are."

The Progressive Conservative government has been waging a legal and public relations battle against the carbon tax since taking power last summer -- with the threat of $150 fines issued against those who fail to display the stickers.

Rickford said Monday no gas station owners have been fined for failing to display the stickers, and inspectors are currently only issuing warnings.

The stickers have been criticized as forced speech by opposition politicians and Ontario's Chamber of Commerce who have called on the government to stop the program.

Meanwhile, Ford said in August that voters would determine the fate of the legal challenge on the Oct. 21 federal election. But last week, following the federal Liberals' re-election, the Tories said they would proceed with the court challenge of the tax.

Rickford said Monday the government remained fully committed "to fighting this job-killing, regressive carbon tax."

The government has earmarked $30 million for its fight against the carbon tax, which includes the legal case it is taking to the country's top court and the sticker campaign.

NDP Leader Andrea Horwath said the government should drop both the sticker campaign and the legal challenge immediately.

"It's a waste of money. It's a waste of time. It's a waste of resources all so that the premier can fight against any kind of commitment to deal with climate change," she said.

Interim Liberal Leader John Fraser said Ford promised to let voters decide and they didn't give him the answer he wanted.

"He killed a plan for climate change and he's trying to kill another one and he has no plan," he said. "That's not helpful to Ontarians."

Green party Leader Mike Schreiner said the Ford "should just essentially drop this politically motivated lawsuit that he has no hope of winning anyway."

The stickers show the federal carbon tax adding 4.4 cents per litre to the price of gas now, rising to 11 cents a litre in 2022. They do not include information about rebates available to residents.

The carbon tax is expected to cost a typical household $258 this year and $648 by 2022. Residents of provinces with the tax will be getting rebates on their income tax returns that start at $128 annually and increase for people with spouses or dependents at home.

This report by The Canadian Press was first published Oct. 28, 2019.