Canada is levelling reciprocal dollar-for-dollar tariffs on U.S. steel and aluminum imports, in response to U.S. President Donald Trump’s 25 per cent tariffs on all steel and aluminum imports that came into effect today.

The federal government’s countermeasures will come into effect at 12:01 a.m. on March 13. The 25 per cent tariffs will hit steel products worth $12.6 billion and aluminum products worth $3 billion.