On Tuesday, the EPA released the 2013 ethanol mandate target numbers, eight months later than original scheduled. There was no change in total or advanced biofuels numbers, but there was a (still unattainable) reduction in the mandate for cellulosic ethanol—a type of fuel not yet commercially available in the U.S.
The EPA's has decided to ignore the growing concerns that refiners will soon hit the blend wall- the point at which no more ethanol can safely be blended into the fuel supply- until at least 2014.
The mandated numbers require that 15.55 million total gallons of ethanol and 6 million gallons in cellulosic ethanol be blended into the U.S. fuel supply.
See below for reactions from concerned organizations, below (updated as they come in):