The U.S. House of Representatives sent a letter signed by 184 bipartisan members to the Environmental Protection Agency calling for revisions to ethanol mandates.
The National Marine Manufacturers Association, as part of the Smarter Fuel Future Coalition, says the group is encouraged by the growing number of elected officials who are “becoming aware of the flawed nature of the Renewable Fuel Standard.”
The letter, sent to EPA administrator Gina McCarthy, cites “significant concern” about ethanol proposals for 2016 because they will breach the ethanol “blend wall.”
The blend wall refers to the maximum amount of ethanol in fuel that can be tolerated by all engines — which is E10, or 10 percent ethanol.
Because the RFS, as written in 2007, has the amount of ethanol flatly increasing — despite a large unanticipated drop in fuel demand — increasing the amount of ethanol blended into the supply will cause blends to increase to E15 and higher, critics say.
“In 2007, the market assumptions regarding the future of transportation fuels in the United States were very different from the realities of the market today,” the letter stated.