The Environmental Protection Agency is expected to announce this morning the approval of using up to 15 percent ethanol blended fuel in vehicles as old as model year 2001.

In October, EPA approved the use of E15 for use in vehicles built in the 2007 model year and newer, but put off the decision on older vehicles until further testing could be done by the Department of Energy.

Ethanol organizations in support of E15 and other groups opposed to using higher blends of ethanol are standing by this morning waiting for EPA to release the official decision to provide reaction.