As we have reported in the past, the disparity in Renewable Identification Number (RIN) prices for conventional versus advanced ethanol has been a de facto subsidy for Brazilian ethanol to enter the U.S. market. This is ironic because the secondary tariff on Brazilian ethanol was removed when the Volumetric Ethanol Excise Tax Credit (VEETC) was eliminated at the end of 2011. The tariff originally was put in place so that the VEETC benefit would apply only to domestic ethanol and not to imports. But with both tax provisions gone, the RIN issued for compliance with the Renewable Fuel Standard (RFS) has become a larger force in ethanol blending economics.RIN prices for conventional ethanol are now about 4.85 cents, while RIN prices for advan...