Some members of Congress are putting pressure on the Obama Administration to increase the allowable amount  of corn ethanol in gasoline. However, raising the ethanol limit to 15 percent, as the Environmental Protection Agency is considering, will not automatically get the higher-proof fuel in motorists' tanks, says the Des Moines Register.

The EPA warns that there are a number of problems facing the higher-ethanol fuel including federal regulations for underground storage tanks, state regulations on gasoline specifications and safety rules for pumps.

Ethanol industry officials have been working to get states to resolve these roadblocks before the EPA’s ethanol limit decision which is expected by Dec. 1.

"There are multiple layers" of issues involving E15, said John Eichberger, vice president of government relations for the National Association of Convenience Stores. "We have to address them all."

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Source: Des Moines Register