As promised by Canadian Deputy Prime Minister Chrystia Freeland, Canada’s Department of Finance issued a notice of its intent to impose countermeasures to President Donald Trump’s reimposition of 10% Section 232 national security tariffs on imports of certain Canadian aluminum products. See Update of August 7, 2020. The products subject to countermeasures will be selected from those listed in Table 1 of the notice, which includes a wide variety of aluminum products. Canadian companies and persons have until September 6, 2020 to provide comments in support of or in opposition to any tariff on a particular product. Goods identified on any final list will be subject to a 10% Canadian surtax. The notice states that “these countermeasures will only apply to goods originating from the U.S., which shall be considered as those goods eligible to be marked as a good of the U.S. in accordance with the Determination of Country of Origin for the Purposes of Marking Goods (CUSMA Countries) Regulations.” These countermeasures will take effect by September 16, 2020, and will remain in place until the U.S. government eliminates its Section 232 tariffs against Canada.