As temperatures and tensions increase, the measures targeting Can$16.6 billion ($12.6 billion) in United States steel, aluminum and consumer goods will take effect on Sunday, when Canadians celebrate a national holiday and just days before Americans celebrate Independence Day amid a heatwave expected in both countries.
Aside from tariffs on steel and aluminum imports from the us, dozens of additional consumer goods will be subject to 10 per cent duties - from ketchup, to lawn mowers, to playing cards.
Canada, which buys more American steel and any other country, said that the US has a $2 billion annual trade surplus in iron and steel products with Canada.
Instead, Canada is trying to make political life uncomfortable for Trump through the retaliatory tariffs that cover an eclectic mix of products, literally from soup to nuts (of the metal kind).
Trudeau and U.S. President Donald Trump spoke late Friday.
Foreign Affairs Minister Chrystia Freeland said the "measured, perfectly reciprocal" actions are in line with similar moves by the European Union and Mexico in response to the tariffs imposed by the USA in May, Toronto Star reported.
The source said the assistance - to be spread over several years - would be similar to an C$867 million five-year package offered to Canadian softwood lumber producers in 2017 after Washington imposed tariffs. "This is a perfectly reciprocal action".
"We are acting very much in sorrow, not in anger", said Freeland, stressing the closeness of the overall relationship. Business people warned Canadian lawmakers this week that an escalation into an all-out trade war would be devastating to the Canadian economy, which sends about 75 percent of its exports to the US.
She said Ottawa had little choice but to take action despite the inherent drawbacks of the approach, which include higher costs of goods on each side of the border.
The Trump administration in May launched an investigation into whether imported vehicles posed a national security threat.
The final list of which American goods will face new tariffs in retaliation for steel and aluminum levies announced last month by the Trump administration is expected to be made public on Friday morning.
The federal support package includes similar measures to those offered by Ottawa a year ago in response US duties on softwood lumber products from Canada.
"The United States is acting as a bully to a smaller country, and I think it would be hypocritical of me to sort of show up and accept their hospitality and free food and so on, when we are in the midst of this trade dispute that is going to have serious ramifications for the entire country and employment in this city", Mr. Watson told CTV earlier in the week, HuffPost reported.
Freeland has insisted that Canada introduced stronger safeguards on steel well before the USA imposed the tariffs.
USA tariffs on $34 billion worth of Chinese goods are to take effect July 6 and a further $16 billion in tariffs.
Canadian Prime Minister Justin Trudeau speaks on June 9 at the conclusion of the G7 summit in La Malbaie, Quebec. "I think all of us, at this point, fully anticipate there will be some moments of drama in the future".
Ritchie says there will be an impact from both countries' imposition of tariffs but Canada will be just fine.
Freeland said an "intensive phase" of NAFTA renegotiations will resume quickly after Sunday's elections in Mexico.
Bains, the economic development minister, said the support is aimed at helping firms adjust to the hard circumstances while enabling them to continue to innovate along the way.
As part of the $2-billion aid package for the steel, aluminum and manufacturing industries, Ottawa will provide liquidity support to affected businesses and increase jobs and training funds for workers in provinces and territories affected by the tariffs. "It would change the calculus", he said.