Canada put the missing customs ledger into public view on 25 August, naming the products subject to the counter-tariffs announced three days earlier [E1][E3]. The measures cover C$27.6 billion in imports from the United States [E1]. Rates are 15, 25 and 50 percent, matching the corresponding U.S. Section 338 and Section 232 rates [E1]. They take effect at 12:01 a.m. EDT on 8 September, equal to 04:01 UTC [E2].
Washington’s 22 August action supplied the 50 percent trigger that Ottawa had said it would match, while the 25 August publication supplies the product-level schedule [E1][E3]. The complete-list page turns the policy into a line-item ledger for U.S. goods [E3]. Ottawa describes the new bands as matching corresponding U.S. Section 338 and 232 rates [E1]. C$27.6 billion is the official Canadian value for imports covered by these counter-tariffs [E1].
Steel and aluminum already subject to a 25 percent Canadian counter-tariff move to 50 percent under the new schedule [E1]. Furniture and clothing are also included among the products named in the release [E1]. The 25 percent band includes appliances, dairy and cheese, fish and seafood, and certain steel and aluminum derivatives [E1]. Those examples sit inside the complete product ledger published alongside the announcement [E1][E3].
One shipping carve-out matters at the effective-date boundary: the new tariffs do not apply to goods already in transit on 8 September [E2]. The clock starts at 12:01 a.m. EDT that day [E2]. Importers therefore have a published list and an effective-time rule before the rates begin [E2][E3]. The exemption separates cargo already moving from goods entering under the new schedule after the cutoff [E2].
The tariff release also attaches a C$7.5 billion support package for workers and businesses affected by the U.S. measures [E1]. That package is separate from the tariff-line schedule, whose covered-import value remains C$27.6 billion [E1][E3]. The support announcement does not change the three printed counter-tariff rates of 15, 25 and 50 percent [E1]. In the customs ledger itself, the operative questions are which product line applies and which rate is attached to it [E1][E3].
One legal-publication step remained absent at the freeze [E3]. The complete-list page points to Canada Gazette instruments where available, but no new Gazette Part II order for the 25 August list had been located by 23:59 UTC [E3]. The public record for the day therefore consists of the news release, the effective-date backgrounder and the complete-list page [E1][E2][E3]. That null matters because the product schedule is public before a new Part II instrument appears in the material available at freeze [E3].
By publication day, Ottawa had moved from a rate announcement to a product schedule with a fixed start time [E1][E2][E3]. The schedule reaches C$27.6 billion of U.S. imports and sends existing steel and aluminum counter-tariffs from 25 to 50 percent [E1]. Goods in transit on 8 September are spared the new measure, while listed goods outside that carve-out face the printed 15, 25 or 50 percent bands [E1][E2]. At 12:01 a.m. EDT on 8 September, the argument becomes a customs entry: product line, matching rate, and a bill as high as 50 percent [E1][E2][E3].