Clean Air Act (CAA)

Recent Activity

Results are sorted by the date of most recent activity.

Chevron USA Inc. v. EPA

November 9, 2022

U.S. Chamber urges Ninth Circuit to hold that a letter issued by EPA—which reversed statutory interpretations and a regulatory safe harbor that EPA had announced three months earlier—is judicially...

Environment Texas Citizen Lobby, Inc. v. Exxon Mobil Corp. (rehearing)

October 20, 2022

U.S. Chamber files coalition amicus brief urging Fifth Circuit to grant rehearing en banc to repudiate panel majority’s relaxed rules for assessing citizen-suit plaintiffs’ Article III standing to...

Environment Texas Citizen Lobby, Inc. v. Exxon Mobil Corp.

August 30, 2022

Divided Fifth Circuit panel holds (1) that plaintiffs had standing to bring citizen suit seeking penalties for Clean Air Act violations on 3,651 violation days; and (2) that $14.25 million penalty...

Chevron U.S.A. Inc. v. EPA

August 12, 2022

D.C. Circuit dismisses Chevron’s petition for review for lack of venue. The court did not reach the questions briefed by the Chamber concerning the availability of judicial review and the merits...

County of San Mateo v. Chevron Corporation

June 27, 2022

Ninth Circuit denies rehearing en banc in California public-nuisance cases against energy companies. The U.S. Chamber, which previously filed multiple amicus briefs in this case, filed an amicus...

County of San Mateo v. Chevron Corporation

May 27, 2022

U.S. Chamber files amicus brief supporting rehearing en banc in California public-nuisance cases against energy companies. The U.S. Chamber previously filed multiple amicus briefs in this case.

County of San Mateo v. Chevron Corporation

April 19, 2022

Affirming district court order remanding cases to state court, Ninth Circuit holds on remand from Supreme Court that none of the grounds for removal asserted by the defendants gives rise to...

Mayor & City Council of Baltimore v. BP PLC

April 7, 2022

Fourth Circuit affirms remand of climate-tort action to state court, holding that none of the grounds for removal gives rise to federal removal jurisdiction. The U.S. Chamber filed an amicus...

Chevron U.S.A. Inc. v. EPA

November 29, 2021

U.S. Chamber urges D.C. Circuit to hold that a letter issued by the Environmental Protection Agency, which reversed statutory interpretations that EPA had definitively announced three months...

United States v. Ameren Missouri

August 20, 2021

Eighth Circuit reverses, in part, district court’s order in Clean Air Act case, concluding that a company’s Clean Air Act violation at one plant does not provide a predicate for requiring...