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Hearth, Patio & Barbecue Ass'n v. Environmental Protection Agency

The D.C. Circuit denied a challenge to EPA's 2015 rule updating the standards under which the Agency audits wood-burning heaters' compliance with CAA emissions limits. An industry group argued the rule was invalid because, unlike the...

Ass'n of Irritated Residents v. U.S. Environmental Protection Agency

The Ninth Circuit granted in part and denied in part a petition to review EPA's final rule approving California's SIP for meeting the air quality standard for ozone in the San Joaquin Valley. An environmental group argued the SIP's...

United States v. Ameren Missouri

The Eighth Circuit affirmed in part and reversed in part a district court ruling in an ongoing enforcement suit concerning air pollution at a utility company's coal-fired power plant in Missouri. EPA argued the company violated the CAA...

Issuance of Air Emissions Permit No. 13700345-101 for Polymet Mining, Inc., City of Hoyt Lakes, St. Louis County, Minnesota

A Minnesota appellate court remanded a challenge to the Minnesota Pollution Control Agency's (MPCA's) grant of an air emissions permit for a proposed copper-nickel mine in northern Minnesota. Environmental groups argued the MPCA...

Growth Energy v. Environmental Protection Agency

The D.C. Circuit granted in part environmental groups' petition to review EPA's 2019 rule setting annual renewable fuel volume levels under the Renewable Fuel Standard (RFS) program. The groups argued that EPA's "aggregate compliance...

American Fuel & Petroleum Manufacturers v. Environmental Protection Agency

The D.C. Circuit vacated in part EPA's 2019 rule lifting seasonal restrictions on the sale of higher-ethanol fuel. Petroleum industry groups challenged a specific section of the rule, in which EPA announced a new interpretation of when...

State ex rel. Yost v. Volkswagen Aktiengesellschaft

The Ohio Supreme Court affirmed an appellate court ruling in a lawsuit concerning Volkswagen’s efforts to cheat U.S. diesel emissions tests. Ohio sued the company, arguing its post-sale tampering with emissions control systems violated...

Clean Air Council v. United States Steel Corp.

The Third Circuit affirmed dismissal of a lawsuit concerning reporting requirements for emissions following fires at a steel facility near Pittsburgh. An environmental group argued the facility operator should have reported the...

Voigt v. Coyote Creek Mining Co., LLC

The Eighth Circuit affirmed, 2-1, summary judgment for a mining company in a lawsuit concerning the company's operation of a coal mine in North Dakota. Owners of an adjacent ranch argued the company violated the CAA by failing to obtain...

Sierra Club v. BP Products North America Inc.

A district court adopted a magistrate judge's recommendation and granted an environmental group's motion for partial summary judgment in a lawsuit concerning particulate matter emissions violations at an oil refinery in Indiana. The...

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