Regulation & law · 22/11/2005

EPA Finds Vigo County 8-Hour Ozone Redesignation Plan Adequate for Conformity

The US Environmental Protection Agency (EPA) has confirmed that the Vigo County, Indiana, 8-hour ozone redesignation plan is sufficient for transportation conformity purposes, following a court ruling that SIPs must be affirmatively found adequate by EPA before being used for conformity determinations.