According to the Renewable Fuels Association, Growth Energy, and the American Coalition for Ethanol, ethanol producers announced April 23 that they will fund a nationwide fuel survey of 160,000 gas stations, the last Environmental Protection Agency Requirement they face to move forward with E15 gasoline. Some Midwestern states will be ready to add E15 at gas stations as soon as all parties are registered and they implement an agency-approved plan to avoid use of the fuel in cars that it could damage. At the same time, the U.S. Court of Appeals for the District of Columbia Circuit is considering a ruling on the agency’s waiver, which could immediately halt the plan.