Canada Gazette - Part I, October 31, 2026, volume 160, number 44

The Gazette reports that the Interim Order changes how the On-Road Vehicle and Engine Emission Regulations work so they stay in line with the U.S. Environmental Protection Agency's air pollutant standards for on-road vehicles and engines[1].According to the Gazette, the order also changes the Passenger Automobile and Light Truck Greenhouse Gas Emission Regulations to keep them aligned with the EPA's vehicle classifications[1].Rebel News reports that an interim order expires after one year unless the regulations are amended to match. The November 2025 order therefore ends on Nov. 24, and the October order replaces it.[2]According to Rebel News, the trailer standards were added in 2018 to cover trailers built from 2020 onward, but an interim order suspended them in May 2019 before any trailer was subject to them[2]. is "wearing thin" because the EPA rescinded its greenhouse gas endangerment finding on Feb. 18 and repealed its vehicle emission standards, effective April 20[2].A December 2025 Gazette notice said the Department of the Environment's analysis found that Canadian companies would be at a competitive disadvantage if trailer standards applied only in Canada[3].Separately, Electric Autonomy reports that the federal government will hold its light-duty fleet-average greenhouse gas standard at 2026 levels (172 grams per mile) through 2029[4].