President Donald Trump said in an Oval Office signing ceremony Monday evening that his administration will impose 25% tariffs on Mexico and Canada on February 1, an extraordinary change in North American trade policy that could raise prices for American consumers.

Canadian leaders expressed relief that broad tariffs were not applied to Canadian products on the first day of Donald Trump’s presidency.

The president said he planned to put tariffs on America’s neighbors on Feb. 1, as he signed an executive order mandating a sweeping review of U.S. trade policy.