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Or sign-in if you have an account.U.S. President Donald Trump at an event in the Oval Office at the White House on July 24, 2026. Photo by Eric Lee/Getty ImagesThe Trump administration is facing a fresh legal challenge to the president’s latest round of global tariffs that took effect Friday.Enjoy the latest local, national and international news.Exclusive articles by Conrad Black, Barbara Kay and others. Plus, special edition NP Platformed and First Reading newsletters and virtual events.Unlimited online access to National Post.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles including the New York Times Crossword.Support local journalism.Enjoy the latest local, national and international news.Exclusive articles by Conrad Black, Barbara Kay and others. Plus, special edition NP Platformed and First Reading newsletters and virtual events.Unlimited online access to National Post.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles including the New York Times Crossword.Support local journalism.Create an account or sign in to continue with your reading experience.Access articles from across Canada with one account.Share your thoughts and join the conversation in the comments.Enjoy additional articles per month.Get email updates from your favourite authors.Create an account or sign in to continue with your reading experience.Access articles from across Canada with one accountShare your thoughts and join the conversation in the commentsEnjoy additional articles per monthGet email updates from your favourite authorsSign In or Create an AccountorSmall businesses filed a pair of lawsuits in the U.S. Court of International Trade accusing President Donald Trump and U.S. officials of unlawfully using Section 301 of the Trade Act of 1974 to replace earlier tariffs struck down by the U.S. Supreme Court.The Trump administration announced Thursday that the U.S. will collect duties of between 10 per cent and 12.5 per cent on imports from most major trading partners. The move under Section 301 followed a probe into the alleged failure of around 60 economies to prevent forced labor in their supply chains to the detriment of American workers.Get a dash of perspective along with the trending news of the day in a very readable format.By signing up you consent to receive the above newsletter from Postmedia Network Inc.A welcome email is on its way. If you don't see it, please check your junk folder.The next issue of NP Posted will soon be in your inbox.We encountered an issue signing you up. Please try againTrump aims to rebuild a tariff wall that was struck down in February when the Supreme Court ruled his global levies, issued under the International Emergency Economic Powers Act, or IEEPA, were illegal.Trump subsequently imposed 10 per cent global tariffs, under Section 122 of the Trade Act, and those were ruled illegal by a trade court but were allowed to stay in effect during an appeal. The Section 122 tariffs expire Friday.Section 301 allows the U.S. Trade Representative, under the direction of the president, to impose tariffs in response to other nations’ trade measures it deems discriminatory to American businesses or in violation of U.S. rights under international trade agreements.Spokespeople for the trade representative, White House and Justice Department didn’t immediately respond to requests for comment.Lawyers in one of the cases filed on Friday on behalf of two small businesses — spice importer Burlap and Barrel Inc. and watch retailer Collective Horology LLC — allege in the complaint that the new tariffs failed to reflect the “country-specific inquiry” that Congress expected when it adopted Section 301. They filed the case as a proposed class action suit covering all importers of record who will pay the new tariffs.“It is not a freestanding authorization to tax substantially all imports from substantially all trading partners at rates selected to replicate the invalidated IEEPA tariff regime,” they wrote.The businesses argue that the trade representative failed to explain “how each economy’s particular practices burden or restrict United States commerce, rather than relying on generalized assertions regarding the effects of forced labor and forced-labor inputs in global supply chains.”Sara Albrecht, chief executive officer of the Liberty Justice Center, which brought the Burlap & Barrel case, said in a statement that “forced labor is morally indefensible, but an important objective does not give the government permission to ignore the law.”Liberty Justice Center previously brought lawsuits challenging the IEEPA and Section 122 tariffs.Another lawsuit challenging the Section 301 tariffs was filed on Friday on behalf of seven businesses, including two educational toymakers — Learning Resources Inc. and hand2mind Inc. — that were involved in the earlier IEEPA tariff litigation that reached the Supreme Court.The latest litigation comes as the administration continues to face fallout from the IEEPA tariffs. In the months since the Supreme Court invalidated those tariffs, customs authorities have had to contend with refund demands from thousands of businesses that paid the roughly $166 billion in levies collected.The ongoing disputes over IEEPA refunds provides a preview to potential logistical and legal headaches ahead for everyone involved in challenges to the new Section 301 tariffs — the government, businesses and the New York-based trade court. The trade court had declined requests from companies to block the administration from enforcing the IEEPA tariffs before the Supreme Court ruled, which allowed the volume of disputed levies to grow in size and complexity for months.The U.S. government has paid billions of dollars in IEEPA tariff refunds so far, but the Justice Department continues to fight the extent of the trade court’s authority to dictate how that process should work. The administration is appealing a judge’s order that would require tariffs to be recalculated across-the-board to all importers that paid them, arguing that he can only issue orders that apply to parties in court.The cases are Burlap and Barrel Inc. v. Greer, 26-cv-3345, and Learning Resources Inc. v. United States, 26-cv-3347, U.S. Court of International Trade (New York).Our website is the place for the latest breaking news, exclusive scoops, longreads and provocative commentary. Please bookmark nationalpost.com and sign up for our daily newsletter, Posted, here. Join the Conversation This website uses cookies to personalize your content (including ads), and allows us to analyze our traffic. Read more about cookies here. By continuing to use our site, you agree to our Terms of Use and Privacy Policy.