Tariff
A tariff is a tax on imports or exports between sovereign states. It is a form of regulation of foreign trade. It is a policy that taxes foreign products to encourage or protect domestic industry. It helps limit trade deficits. The tariff is historically used to protect infant industries and to allow import substitution industrialization.
Tariff in United States history
The "Trump tariffs" were imposed by executive order (not by act of Congress) during the presidency of Donald Trump as part of his economic policy. In January 2018, Trump imposed tariffs on solar panels and washing machines of 30 to 50 percent. He soon imposed tariffs on steel (25%) and aluminum (10%) from most countries. On June 1, 2018, this was extended on the European Union, Canada, and Mexico. The only countries which remain exempted from the steel and aluminum tariffs are Australia and Argentina. Separately, on July 6, the Trump administration set a tariff of 25% on 818 categories of goods imported from China worth $50 billion.