Across California, businesses of all kinds — farmers, automakers, home builders, tech companies and apparel retailers — are reeling from weeks of on-again, off-again tariff chaos as Trump has announced a slew of levies against the country’s top three trading partners, implementing some while modifying, delaying or reversing others.

Canada and Mexico A 25% import tariff on goods from Mexico and Canada took effect March 4, with an exception for energy products and potash, which received a 10% tariff. The next day, the Trump administration suspended those tariffs until April 2 for autos eligible for duty-free trade under the U.