View Comments Gov. Eric Holcomb has vetoed a bill that would have increased labeling for ethanol fuel at gas stations, calling it "unnecessary and confusing." In a letter to Indiana Senate President Rodric Bray, Holcomb announced his decision to veto Senate Bill 303 because he said it requires a "duplicative label at every pump that dispenses E15 fuel in the state." E15 is a blend of fuel that is 15% ethanol and 85% gasoline. The U.S. Environmental Protection Agency already has mandates in place that require all stations and pumps with E15 fuels to have a label that clearly advises consumers of the implications of using fuel in certain engines.