On April 29, 2014, Justice Ginsburg delivered the opinion of the Supreme Court in EPA v. EME Homer City Generation, L.P., 572 U.S._(2014) reversing the DC Circuit’s decision regarding the Transport Rule, also known as the Cross-State Air Pollution Rule (CSAPR), a rulemaking designed to address the significant contribution of upwind States to nonattainment of National Ambient Air Quality Standards in downwind States under the Good Neighbor Provision of the Clean Air Act (CAA). In addition to upholding EPA’s cost-effective allocation of air pollutant emission reductions among upwind States as a permissible interpretation of the Good Neighbor Provision, the majority held that the CAA does not compel EPA to provide States with an opportunity to file a SIP after EPA has quantified the State’s interstate pollution obligations. This opinion is a severe blow to cooperative federalism.
In the majority opinion, cooperative federalism was relegated to a single footnote, which was surprising given the issues for which certiorari was granted. The second issue addressed in the briefs and argument – whether states are excused from adopting state implementation plans prohibiting emissions that “contribute significantly” to air pollution problems in other states until after the EPA has adopted a rule quantifying each state’s inter-state pollution obligations – provided the Supreme Court with an opportunity to address the relative health of cooperative federalism and whether the federalism bar should be raised or lowered in the context of the CAA.
Justice Ginsburg’s footnote addressed Justice Scalia’s dissenting opinion in which he criticized the majority for “making hash of the Clean Air Act, transforming it from a program based on cooperative federalism to one of centralized federal control.” EPA’s promulgation of federal implementation plans without providing the States with a meaningful opportunity to perform the emissions reductions through state implementation plans is inconsistent with the core principle and regulatory strategy of cooperative federalism embedded in the CAA – air pollution control at its source is the primary responsibility of States and local governments.
Homer’s Odyssey continues. For the next chapter, his ship will not sail under the fair winds of cooperative federalism.