U.S. Sugar Corp. v. EPA, No. 11-1108 (D.C. Cir. 2016)
Annotate this CaseIn consolidated petitions for review, petitioners challenged three regulations - the Major Boilers Rule, the Area Boilers Rule, and the Commercial/Industrial Solid Waste Incinerators (CISWI) Rule - promulgated by the EPA under the Clean Air Act (CAA), 42 U.S.C. 7401 et seq., that sets emissions limits on certain combustion machinery known to release hazardous air pollutants (HAPs). The court vacated the “maximum achievable control technology” (MACT) standards for all major boiler subcategories that would have been affected had the EPA considered all sources included in the subcategories. The court remanded, without vacature to the EPA to: (1) adequately explain how CO acts as a reasonable surrogate for nondioxin/furan organic HAPs; (2) set emission standards for cyclonic burn barrels; (3) determine whether burn-off ovens, soil treatment units, and space heaters are CISWI units and, if so, to set standards for those types of units; (4) adequately explain the exclusion of synthetic boilers from Title V’s permitting requirements; and (5) adequately explain the choice of “generally available control technologies” (GACT) standards over MACT standards for non-Hg metals.
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