The City is aware 6 to 7 other interested parties and entities have challenged the FERC approval by filing a request for rehearing before FERC. This is an administrative proceeding in which Federal Energy Regulatory Commission (FERC) reviews its own actions. The City will continue to collaborate with those groups, such as CORN, the City of Oberlin and the Sierra Club. However, the City chose not to appeal to FERC, but instead chose to concentrate its efforts on challenging the state permit. This decision was based on case law research indicating that challenging the issuance of a certificate before FERC has never been successful.