U.S. Senators Roger Wicker, R-Miss., and David Vitter, R-La., last week introduced legislation to block an increase in the amount of ethanol that can be blended with gasoline, aiming to overturn Environmental Protection Agency waivers that allowed gasoline containing 15% ethanol to be used for many passenger cars and light trucks. The Wicker-Vitter bill would also prohibit the EPA Administrator from granting any waiver for a blend above 10% ethanol
