EPA published a direct final rule on October 9, 2012 to amend the definition of heating oil in 40 CFR 80.1401 in the Renewable Fuel Standard ("RFS") program under section 211(o) of the Clean Air Act. The direct final rule also amended requirements under EPA's diesel sulfur program related to the sulfur content of locomotive and marine diesel fuel produced by transmix processors, and the fuel marker requirements for 500 ppm sulfur locomotive and marine (LM) diesel fuel to allow for solvent yellow 124 marker to transition out of the distribution system. Because EPA received adverse comments on the heating oil definition and transmix amendments, we are withdrawing those portions of the direct final rule. Because EPA did not receive adverse comments with respect to the yellow marker amendments, those amendments will become effective as indicated in the direct final rule.