Congress would not raise tariff rates until the passage of the Tariff of 1824. Jackson supported a revision to tariff rates known as the Tariff of 1832. Policy applications include estimating the effects of changing tariff rates and trade quotas. He revamped the taxation and tariff system. The premium is calculated through the rates provided by the Tariff Advisory Committee. This is known as the Common Effective Preferential Tariff (CEPT) scheme. The campaign centered mainly on economic issues, especially the protectionist 1890 McKinley Tariff. He secured a substantial reduction of tariff rates with the Walker tariff of 1846. It was designed to placate the nullifiers by lowering tariff rates. Harrison defended the protectionist McKinley Tariff passed during his term. Generally, Roosevelt favored the policy of the protective tariff. Protectionism increased with the McKinley Tariff of 1890 and the Dingley Tariff of 1897. The party then split on the issue of Tariff Reform. The Morrill Tariff of 1861 was designed to raise revenue. The third basis for a tariff involves dumping.