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Ohio v. Environmental Protection Agency
Kinder Morgan, Inc. v. EPA
American Forest & Paper Association v. EPA
United States Steel Corporation v. EPA
Ohio v. Environmental Protection Agency; Kinder Morgan, Inc. v. EPA ; American Forest & Paper Association v. EPA ; United States Steel Corporation v. EPA
	Supreme Court of the United States
Argued February 21, 2024; Decided June 27, 2024
Full case name	Ohio, et al. v. Environmental Protection Agency, et al.; Kinder Morgan Inc., et al. v. EPA; American Forest & Paper Association, et al. v. EPA; United States Steel Corporation v. EPA, et al.;
Docket nos.	23A349; 23A350; 23A351; 23A384
Citations	603 U.S. 279 (more)
Argument	Oral argument
Questions presented
	(1) Whether the court should stay the Environmental Protection Agency’s federal emission reductions rule, the Good Neighbor Plan; and (2) whether the emissions controls imposed by the rule are reasonable regardless of the number of states subject to the rule.
Holding
	The applications for a stay are granted; enforcement of EPA’s rule against the applicants shall be stayed pending the disposition of the applicants’ petition for review in the D. C. Circuit and any petition for writ of certiorari, timely sought
Court membership
	Chief Justice John Roberts Associate Justices Clarence Thomas · Samuel Alito; Sonia Sotomayor · Elena Kagan; Neil Gorsuch · Brett Kavanaugh; Amy Coney Barrett · Ketanji Brown Jackson
Case opinions
Majority	Gorsuch, joined by Roberts, Alito, Thomas, Kavanaugh
Dissent	Barrett, joined by Sotomayor, Kagan, Jackson
Laws applied
	Clean Air Act

Ohio v. Environmental Protection Agency, 603 U.S. 279 (2024), is a United States Supreme Court case regarding the Clean Air Act.

Background

The United States Clean Air Act is a law intended to reduce the impacts of air pollution. In the Clean Air Act, there is a section called the "Good Neighbor" provision, which mandates states to implement policies to reduce the impact of air pollution on other states, such as asthma or bronchitis.^[1] In October 2015, the Environmental Protection Agency set new standard for reduction of ozone pollution.^[1] This required states to submit State Implementation Plans (SIPs).^[2] In 2022, the EPA announced that it would be denying 23 states' SIPs.^[2] In response, the EPA proposed a Federal Implementation Plan that amended the National Ambient Air Quality Standards.^[3] The EPA had a right to do this under the Clean Air Act. Three plaintiffs, collectively referred to as "Ohio," filed an emergency appeal to the Supreme Court.

Supreme Court

Ohio claimed that the EPA's federal implementation plan would put undue pressure on the U.S. electrical grid. The EPA argued that the plan contained important public benefits that if halted would cause delays in improving air quality that could be harmful. The EPA also argued that Ohio did not demonstrate any harm that would arise if the plan remained in effect while the legal proceedings continued. The Supreme Court did not put the EPA plan on hold while legal proceedings were underway. In a 5-4 decision, the Supreme Court decided that the EPA plan would be stayed pending petition for review and writ of certiorari.

Majority opinion

Neil Gorsuch delivered the opinion of the court, which John Roberts, Samuel Alito, Clarence Thomas, and Brett Kavanaugh joined. They claimed that the EPA's methodology in their report was misreported and incorrect. They applied the Clean Air Act's section that allows a court to reverse a federal implementation plan if it is "arbitrary or capricious" and found in favor of Ohio.^[4]^[5]

Dissent

Amy Coney Barrett delivered the dissent, joined by Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson. The dissent argued that the petition did not meet the criteria for emergency relief and that the case should be re-evaluated on its merits.^[5]

References

^ ^a ^b "Ohio v. Environmental Protection Agency." Oyez, www.oyez.org/cases/2023/23A349. Accessed 29 June 2024.
^ ^a ^b Jones, Bruce; Weymiller, Marcus (June 27, 2024). "Supreme Court Decides Ohio, et al. v. Environmental Protection Agency, et al". faegre drinker. Retrieved June 29, 2024.
^ Blum, Garry; Perrault, Griffin (June 29, 2024). "Ohio v. Environmental Protection Agency". Cornell Law. Retrieved June 29, 2024.
^ "Ohio v. Environmental Protection Agency". Ballotpedia. Retrieved 2024-06-29.
^ ^a ^b United States, U.S. Supreme Court (U.S.). Ohio v. Environmental Protection Agency. United States Reports, vol. 603, 27 June 2024. Supreme Court, www.supremecourt.gov/opinions/23pdf/23a349_0813.pdf. Accessed 29 June 2024.