The Rainbow Bridge across the Niagara River, connecting the United States to Canada, is shown in 2024. On Monday, U.S. President Donald Trump signed orders mandating new 50% tariffs against some Canadian imports. File Photo by Joe Marino/UPI | License Photo

July 20 (UPI) -- President Donald Trump signed orders Monday to impose a new 50% tariff on many Canadian imports, saying it's because of "discriminatory treatment" of U.S. products.

The tariffs take effect Aug. 19 and affect a wide range of goods including wine, hockey sticks, electrical equipment and concrete.

Trump cited part of the Tariff Act of 1930 that allows a U.S. president to mandate a tariff up to 50% without congressional approval if a country is believed to be discriminating against U.S. goods. However, the law has not been applied this way before, CNN reported.

The Trump administration said the tariffs cover $20 billion worth of imports. They join ongoing tariffs from 15% to 50% imposed by the United States on Canadian steel, aluminum and copper, as well as Canadian softwood lumber, BBC News reported.