Jurisdiction: Delaware

2017-02-06 North Dakota v. EPA Climate Change Mitigation Defense of Federal Standards

Multiple states joined as defendant-intervenors in support of EPA in lawsuit challenging New Source Performance Standards (NSPS) for carbon dioxide emissions from new and modified power plants.

California, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Mexico, New York, Oregon, Rhode Island, Vermont, Virginia, Washington
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
2016-06-28 Settlement with Volkswagen for Emissions Defeat Devices Air Pollution Lawsuit vs. Private Actors

Settlement of consumer protection claims raised by a multi-state coalition of state attorneys general against Volkswagen for selling vehicles equipped with “defeat device” software intended to circumvent emissions standards and concealing this software from regulators and the public.

Alabama, Alaska, Arkansas, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New York, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Virginia, Washington, Wisconsin, Wyoming
2015-11-03 West Virginia v. EPA Climate Change Mitigation Defense of Federal Standards

Multi-state intervention to join EPA’s defense of Clean Power Plan against challenge mounted by other states and industry petitioners.

California, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Mexico, New York, Oregon, Rhode Island, Vermont, Virginia, Washington
2015-06-29 Michigan v. EPA Air Pollution Defense of Federal Standards

Multiple states intervened in lawsuit to defend EPA standards regulating mercury and other air pollutants from the power sector.

California, Connecticut, Delaware, District of Columbia, Illinois, Iowa, Maryland, Massachusetts, Minnesota, New Hampshire, New Mexico, New York, North Carolina, Rhode Island, Vermont
2014-06-23 Utility Air Regulatory Group v. EPA Climate Change Mitigation Defense of Federal Standards

Multiple states intervened in lawsuit to defend EPA rules concerning regulation of greenhouse gas emissions from stationary and mobile sources.

California, Connecticut, Delaware, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Mexico, New York, North Carolina, Oregon, Rhode Island, Vermont, Washington
2014-04-29 EPA v. EME Homer City Generation Air Pollution Defense of Federal Standards

Multiple states intervened in lawsuit to support EPA rule on cross-state air pollution against state and industry challenge.

Connecticut, Delaware, District of Columbia, Illinois, Maryland, Massachusetts, New York, North Carolina, Rhode Island, Vermont
2012-06-02 New York v. Jackson Air Pollution Lawsuit vs. Federal Government

Multi-state lawsuit to force EPA to comply with Clean Air Act requirement to update and revise National Ambient Air Quality Standards (NAAQS) every five years.

California, Connecticut, Delaware, Maryland, Massachusetts, New Mexico, New York, Oregon, Rhode Island, Vermont, Washington
2010-11-23 Delaware Dept. of Natural Resources and Environmental Control v. U.S. Army Corps of Engineers Environmental Assessment, Water Pollution Lawsuit vs. Federal Government

Delaware and New Jersey brought action pursuant to the APA to challenge a decision made by the US Army Corp of Engineers to proceed with a dredging project to deepen the main navigation channel of the Delaware River without obtaining requisite approval pursuant to the CWA, CAA, CZMA, and Delaware code.

Delaware, New Jersey
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
2009-02-08 New Jersey v. EPA Air Pollution Lawsuit vs. Federal Government

Multi-state challenge to EPA decision to remove fossil fuel-fired power plants from list of sources regulated under CAA section 112 (hazardous air pollutants) and to establish new performance standards for mercury emissions from these plants under CAA section 111.

California, Connecticut, Delaware, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New Mexico, New York, Pennsylvania, Rhode Island, Vermont, Wisconsin
2006-03-17 New York v. EPA Air Pollution Lawsuit vs. Federal Government

Multi-state challenge to 2002 EPA rule amending and expanding the routine maintenance, repair and replacement exceptions to the New Source Review program.

California, Connecticut, Delaware, District of Columbia, Illinois, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New Mexico, New York, Pennsylvania, Rhode Island, Vermont, Wisconsin
2005 New York v. EPA Air Pollution Lawsuit vs. Federal Government

Multi-state challenge to 2002 EPA rule amending the New Source Review (NSR) program and narrowing the definition of “modification” to exclude certain sources from NSR requirements.

California, Connecticut, Delaware, District of Columbia, Illinois, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Wisconsin