Mack Trucks, Inc., et al. v. EPA, No. 12-1077 (D.C. Cir. 2012)
Annotate this CaseIn January 2012, the EPA promulgated an interim final rule (IFR) to permit manufacturers of heavy-duty diesel engines to pay nonconformance penalties (NCPs) in exchange for the right to sell noncompliant engines. Petitioners requested administrative stays of the IFR, protesting that the EPA lacked good cause within the meaning of the Administrative Procedures Act (APA), 5 U.S.C. 500 et seq. The court concluded that the EPA took this action without providing formal notice or an opportunity for comment, invoking the "good cause" exception provided in the APA. Because the court found that none of the statutory criteria for "good cause" were satisfied, the court vacated the IFR.
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