Where the U.S. Environment Protection Agency’s interpretation of an ambiguous statutory provision was reasonable, the agency was entitled to deference under Chevron. The 7th U.S. Circuit Court of Appeals denied a petition of review from an order of the U.S. Environmental Protection Agency. In 2002, Georgia-Pacific Corp. asked the state of Wisconsin to renew the Clean Air Act Title V permit for its pre-1975 paper mill. Title V requires each covered, stationary source of air pollution to have an operating permit …