The U.S. Environmental Protection Agency is considering a major change to the Renewable Fuel Standard that could include offering biofuel credits attached to gallons of ethanol exported from the United States. Already this week, the U.S. biofuels industry took a punch to the gut when the EPA announced it was considering more cuts in some biofuel volumes in addition to cuts already proposed in the Renewable Fuel Standard.Now, another media outlet, citing anonymous sources, reported the agency is considering a proposal from Valero Energy to leave renewable identification numbers, or RINs, attached to U.S. ethanol gallons produced in the United States and exported. Currently, RINs are removed from exported gallons.Valero said in Aug. 31 public comments to EPA on the RFS that keeping RINs attached to exports would help ease pressure on the RINs market.When contacted by DTN an EPA spokesman said, "EPA is currently seeking input from all stakeholders involved. Nothing has been finalized at this time."