Whitman v. American Trucking Ass'ns, Inc.

Whitman v. American Trucking Associations, Inc.
Supreme Court of the United States
Argued November 7, 2000 Decided February 27, 2001
Full case name	Christine Todd Whitman, Administrator of Environmental Protection Agency, et al. v. American Trucking Associations, Inc., et al.
Citations	531 U.S. 457 (more)
Argument	Oral argument
Holding
The Clean Air Act properly delegated legislative power to the Environmental Protection Agency, but the EPA cannot consider implementation costs in setting primary and secondary national ambient air quality standards.
Court membership
Chief Justice William Rehnquist Associate Justices John P. Stevens · Sandra Day O'Connor Antonin Scalia · Anthony Kennedy David Souter · Clarence Thomas Ruth Bader Ginsburg · Stephen Breyer
Case opinions
Majority	Scalia, joined by Rehnquist, O'Connor, Thomas, Kennedy, Ginsburg; Stevens, Souter (except part III); Breyer (except part II)
Concurrence	Thomas
Concurrence	Stevens (in part), joined by Souter
Concurrence	Breyer (in part)
Laws applied
Section 109 of the Clean Air Act (CAA)

Whitman v. American Trucking Associations, Inc., 531 U.S. 457 (2001), was a case decided by the United States Supreme Court in which the Environmental Protection Agency's National Ambient Air Quality Standard (NAAQS) for regulating ozone and particulate matter was challenged by the American Trucking Association along with other private companies and the States of Michigan, Ohio, and West Virginia. The Supreme Court faced the issues of whether the statute had impermissibly delegated legislative power to the agency, and whether the Administrator of the EPA, Christine Todd Whitman, could consider the costs of implementation in setting national ambient air quality standards.

Section 109(b)(1) of the CAA (Clean Air Act) instructed the EPA to set "ambient air quality standards the attainment and maintenance of which in the judgment of the Administrator, based on [the] criteria [documents of Section 108] and allowing an adequate margin of safety, are requisite to protect the public health." The D.C. Circuit Court of Appeals had decided that the standard making procedure delegated by Congress to the EPA to set air quality was an unconstitutional delegation in contravention of Article I, Section I of the U.S. Constitution because the EPA had interpreted the statute to provide "no intelligible principle" to guide the agency's exercise of authority. It also found that the EPA could not consider the cost of implementing a national ambient air quality standard.

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