Air Alliance Houston v. EPA, No. 17-1155 (D.C. Cir. 2018)Annotate this Case
At issue in this appeal was whether the EPA had authority under Sections 307(d)(7)(B) and 112(r)(7) of the Clean Air Act (CAA) to delay the effective date of the Chemical Disaster Rule of January 13, 2017, for twenty months for the purpose of reconsideration, and, if so, whether it properly exercised that authority.
The DC Circuit held that, where EPA has exercised its Section 7607(d)(7)(B) authority to delay the effectiveness of a final rule, it cannot avoid that statute's express limitations by invoking general rulemaking authority under a different statutory provision. The court also held that, in any event, EPA's promulgation of the Delay Rule was arbitrary and capricious where EPA's explanations for its changed position on the appropriate effective and compliance dates were inadequate. Therefore, the court granted the petitions for review and vacated the Delay Rule.