History of tariffs in Australia
Australian governments, both those of the colonies after the introduction of responsible government in the 1850s and the national government since federation in 1901, have had the power to fix and change tariff rates. This power resides in the respective legislatures, with tariffs, being a tax law, is required to originate in the lower house of the legislature.
Source: Wikipedia — History of tariffs in Australia (CC BY-SA 4.0)