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Select Citation Style Copy Citation Share to social media Written and fact-checked by The Editors of Encyclopaedia BritannicaEncyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
The Editors of Encyclopaedia BritannicaFormally called the United States Tariff Act of 1930, this legislation, originally intended to help American farmers, raised already high import duties on a range of agricultural and industrial goods by some 20 percent. It was sponsored by Sen. Reed Smoot of Utah and Rep. Willis Hawley of Oregon and was signed into law on June 17, 1930, by Pres. Herbert Hoover.
