A timeline of Trump's tariff proposals

President Trump is widening the scope of goods and nations that might face tariffs — a growing list of plans closely tracked by financial markets, CEOs and consumers.

• Here is a list of the White House's tariff orders and when those import taxes might take effect.

Why it matters: The tariffs could jolt the global trading system and stoke tensions with allies and adversaries. Few tariffs have been implemented so far, though the risk alone is weighing on U.S. businesses and shoppers.