Tariff Rules Under Legal Challenge
The legal fate of recent U.S. global tariffs is unsettled after the U.S. Court of International Trade heard new challenges and 24 states argued against the administration’s basis for tariffs. That procedural flux turns tariffs themselves into an operational risk—companies must plan for rules that could be imposed, stayed, or overturned in quick succession (yakimaherald.com) (maitlandmercury.com.au).
A tariff can now change in the same way a traffic light can glitch: green on Monday, red on Tuesday, yellow by Friday. On April 10, a three-judge panel of the United States Court of International Trade heard challenges to President Donald Trump’s new 10 percent tariff on most imports, and the judges pressed both sides on whether the law even fits the problem the White House says it is solving. (apnews.com) (reuters.com) This is Trump’s backup plan, not his first one. The Supreme Court struck down his broader tariffs in February 2026 after the administration had tried to use the 1977 International Emergency Economic Powers Act, so the White House switched to a different law and imposed the current 10 percent global tariff on February 24. (nbcnews.com) (pbs.org) The new legal hook is Section 122 of the Trade Act of 1974, a narrow emergency tool that lets a president impose a temporary import surcharge of up to 15 percent for no more than 150 days unless Congress extends it. The administration says that statute covers today’s trade imbalance, while the challengers say Congress wrote it for a very different kind of currency-and-payments crisis. (whitehouse.gov) (uscode.house.gov) That fight over old statutory language is why the hearing sounded so technical. Judges questioned what “balance-of-payments deficits” meant when Congress wrote the law in 1974 and whether a modern U.S. trade deficit is the same thing, with one judge asking whether the government was stretching a specialized term into a general one. (politico.com) (apnews.com) The states’ case is unusually broad. A coalition led by Oregon filed suit on March 5 with 24 states, arguing that the tariff order exceeds presidential power and asking the trade court to block the measure and order refunds for costs tied to the tariffs. (ag.ny.gov) (cbsnews.com) Small businesses are in the case too, because a flat tariff on “most imports” hits companies that do not have easy substitutes. The court is hearing those business claims alongside the states’ challenge, which turns a legal argument in Manhattan into a pricing problem for importers nationwide. (reuters.com) (nytimes.com) The administration’s own timeline adds pressure. Section 122 only runs for 150 days without an act of Congress, and Trump said on March 4 that the tariff could rise from 10 percent to 15 percent, which is the statute’s ceiling. (whitehouse.gov) (coag.gov) So companies are not just trying to guess the tariff rate. They are trying to guess whether the tariff survives, whether it rises, whether a court stays it, and whether Customs later has to unwind it with refunds, which is not hypothetical because the trade court is already overseeing a refund process for the earlier tariff regime that was struck down. (thompsonhinesmartrade.com) (apnews.com) That is why this case is bigger than one hearing. When tariff policy can be imposed by proclamation, challenged within days, and possibly reversed before the 150-day clock runs out, the legal process becomes part of the cost of every imported machine part, toy, shirt, and appliance crossing a U.S. port. (reuters.com) (uscode.house.gov)
