The Government of Canada intends to introduce legislation extending permanent immediate expensing, or immediate deductions for qualifying investments, to eligible assets in rail and other transportation supply-chain industries. Prime Minister Mark Carney unveiled the broader proposal Tuesday as Canada faces tariffs on exports to the U.S. and a tougher trade environment. The government says the measure would lower businesses’ effective tax rate, improve productivity and strengthen the economy, while the Railway Association of Canada says it could support investment in track, bridges, rolling stock and innovative technologies. The government describes the change as one of the most significant developments in Canada’s business tax system in half a century.