EPA Likely to Lift Ethanol Blend Limits
The U.S. Environmental Protection Agency said it plans to issue a final decision on the proposed increase to the allowable ethanol content in fuel by mid 2010, according to a letter sent today to Growth Energy, a biofuels trade group.
In March 2009, Growth Energy requested a waiver to allow for the use of up to 15 percent ethanol in gasoline, an increase of five percent points. Under the Clean Air Act, EPA was required to respond to the waiver request by December 1, 2009. EPA has been evaluating the group’s request and has received a broad range of public comments as part of the administrative rulemaking process. EPA and the Department of Energy also undertook a number of studies to determine whether cars could handle higher ethanol blends. Testing has been proceeding as quickly as possible given the available testing facilities.
GM Presentation on Motor Fuels & Engine Technology - October 2007
The EPA said that while not all tests have been completed, the results of two tests indicate that engines in newer cars likely can handle an ethanol blend higher than the current 10-percent limit. The agency will decide whether to raise the blending limit when more testing data is available. EPA also announced that it has begun the process to craft the labeling requirements that will be necessary if the blending limit is raised.
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