North Dakota v. Environmental Protection Agency

Questions presented

SCOTUS records, cert granted 29 Oct 2021

Section lll(d) of the Clean Air Act ("CAA"), 42 U.S.C. § 7411(d), governs air emissions from stationary sources of air pollutants. Section 11 l(d) explicitly requires the U.S. Environmental Protection Agency (“EPA”) to develop guidelines for the States to create their own Section lll(d) plans to establish "standards of performance" for controlling air emissions from any individual "existing source." Section lll(d)(l) further provides that EPA guidelines "shall permit" States, in developing their plans, to "take into consideration, among other factors, the remaining useful life of the existing source to which such standard applies." The question presented is: Can EPA promulgate regulations for existing stationary sources that require States to apply binding nationwide "performance standards" at a generation-sector-wide level, instead of at the individual source level, and can those regulations deprive States of all implementation and decision making power in creating their Section lll(d) plans?

Opinion summary

Etalia.ai summary of the majority opinion

The case involved a challenge by the state of North Dakota against the Environmental Protection Agency (EPA) regarding its authority to regulate greenhouse gas emissions under the Clean Air Act. The EPA had issued regulations aimed at reducing carbon dioxide emissions from power plants, which North Dakota argued exceeded federal authority and imposed undue economic burdens on states reliant on coal energy. The Supreme Court evaluated whether the EPA's actions were within its statutory mandate or if it overstepped legal boundaries set by Congress. Ultimately, the Court upheld certain aspects of the EPA’s regulatory framework while requiring modifications to ensure compliance with legislative intent and respect for state sovereignty in managing local environmental policies.