|2016-10-27||Connecticut v. Hyundai Motor Co.||Air Pollution, Climate Change Mitigation||Lawsuit vs. Private Actors||
Multi-state settlement of consumer-protection claims against car manufacturers that overstated their vehicles’ fuel efficiency.
|Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, Tennessee, Texas, Virginia, Washington, Wisconsin|
|2009-02-24||American Farm Bureau Federation v. EPA||Air Pollution||Lawsuit vs. Federal Government||
Multi-state lawsuit challenging the adequacy of EPA’s 2006 revision to the National Ambient Air Quality Standards (NAAQS) regulating soot pollution under the Clean Air Act.
|Arizona, California, Connecticut, Delaware, District of Columbia, Illinois, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont|
|2006-07-03||Pakootas v. Teck Cominco Metals, Ltd.||Natural Resources, Solid & Hazardous Waste, Water Pollution||Amicus Brief, Lawsuit vs. Private Actors||
Washington State intervened and multiple states submitted Amicus Briefs in lawsuit filed by Native American tribe against Canadian smelting company for polluting the Columbia River and Lake Roosevelt.
|Arizona, California, Idaho, Montana, Oregon, Washington|