The trade conflict between the United States and Canada intensified this week as the U.S. implemented import bans on a range of Canadian products, including most alcoholic beverages, whey, molasses, and specific types of motorcycles. These bans are set to take effect on September 29.
This latest move by the U.S. follows earlier impositions of 50% tariffs on approximately $20 billion of Canadian goods. The newly announced import bans target some of those same products, aiming to increase economic pressure on Canadian businesses.
According to Villanova University professor Jonathan Doh, import bans are an uncommon trade policy tool. He noted that while absolute bans are unusual in modern trade history, their overall material impact might be limited except in specific sectors, such as alcohol.
The U.S. ban on alcoholic beverages encompasses malt beer, certain wines, and spirits like bourbon, whiskey, gin, and vodka. In 2023, Canadian whiskey sales in the United States reached $2.3 billion, with 17.5 million 9-liter cases sold, according to the Distilled Spirits Council of the U.S. Overall, the U.S. imported about $846.1 million of the products now subject to import bans in 2023, based on U.S. trade data.
Professor Doh characterized the U.S. action as "tit-for-tat," potentially in response to boycotts of American alcohol that began in Canada. Some Canadian provincial liquor boards and stores started removing U.S. labels from shelves in 2025, which effectively limited Canadian access to American spirits, wine, and beer.
The ban also includes whey, a byproduct of cheesemaking used to add protein to food products. Demand for protein-enriched goods has surged, leading to shortages and record prices for food-grade whey protein. In 2023, Canada supplied nearly half of the $73.6 million worth of general and modified whey imported by the U.S., though the specific types of whey included in the ban represent a smaller portion of that total.
Additionally, the ban affects motorcycles and mopeds with larger engines, which constitute the majority of U.S. motorcycle imports from Canada. However, these specific models account for less than 9% of the total $943.7 million U.S. motorcycle import market.
In a shift from the escalating measures, the U.S. also removed several products, including cement, toilet paper, bedsheets, and fishing rods, from the existing tariff list. Senator Susan Collins of Maine had previously advocated for sparing cement and paper products from tariffs, citing potential risks to Maine companies and jobs.
Barry Appleton, co-director of the New York Law School’s Center for International Law, warned that the U.S. actions, including product bans and additions to the tariff list, risk further retaliation from Canada, potentially harming economic efficiency, affordability, consumer choice, and supply chains.