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Auto emission standards

American Road & Transportation Builders v. Environmental Protection Agency

The D.C. Circuit dismissed a road building association's lawsuit challenging EPA regulations for nonroad engines and vehicles. The regulations pertain to CAA §209(e), which preempts certain state regulation of nonroad engines. The...

Mack Trucks, Inc. v. Environmental Protection Agency

The D.C. Circuit vacated an interim final rule issued by EPA that would allow manufacturers of heavy-duty diesel engines to pay nonconformance penalties in exchange for the right to sell engines that fail to satisfy nitrogen oxide...

Navistar v. Jackson

A district court dismissed an automobile engine manufacturer's lawsuit against EPA seeking to force the Agency to recall model year 2010 heavy-duty diesel engines equipped with liquid, urea-based selective catalyst reduction (SCR)...

Center for Biological Diversity v. United States Environmental Protection Agency

A district court held that EPA need not issue endangerment findings under the CAA for marine vessels and nonroad vehicles and engines, but it denied the Agency's motion to dismiss environmental groups' request for an endangerment...

Chamber of Commerce v. Environmental Protection Agency

The D.C. Circuit denied a petition for review challenging EPA's decision granting California a waiver from federal preemption under the...

Center for Biological Diversity v. United States Environmental Protection Agency

A district court denied two aviation associations' motions to intervene in a case asking the court to order EPA to use its authority...

Massachusetts v. Environmental Protection Agency

The Court held that the U.S. Environmental Protection Agency (EPA) has the statutory authority to regulate greenhouse gases (GHGs) from new motor vehicles. The case arose after private organizations petitioned EPA to begin regulating...

Husqvarna AB v. EPA

The court denies an engine manufacturer's petition to review the U.S. Environmental Protection Agency's (EPA's) Clean Air Act (CAA) Phase 2 emissions standards for new nonroad spark-ignition handheld engines. The court first holds that...

United States v. Toyota Motor Corp.

The court denies a motion to dismiss the U.S. Environmental Protection Agency's (EPA's) suit against an automobile manufacturer under Clean Air Act (CAA) §203(a)(1) for introducing into commerce new motor vehicles that were materially...

Association of Int'l Auto. Mfrs., Inc. v. Commissioner

The court grants automakers' motion to stay their challenge to Massachusetts' zero emission vehicle standards pending the automakers' appeal of a U.S. Environmental Protection Agency (EPA) ruling in the Court of Appeals for the D.C....