From our private database of 14,100+ case briefs...
American Trucking Associations, Inc. v. Environmental Protection Agency
United States Court of Appeals for the District of Columbia Circuit
175 F.3d 1027 (D.C. Cir. 1999)
The Clean Air Act (Act), 42 U.S.C. §§ 7408-09, delegated authority to the Environmental Protection Agency (EPA) (defendant) to promulgate implementing regulations setting national ambient air quality standards (NAAQS) for air pollutants. For each pollutant, the EPA set a primary standard to protect public health “with an adequate margin of safety,” and a secondary standard to protect the public welfare. In 1997, the EPA issued rules revising the NAAQS for particulate matter (PM) and ozone. The rules indicated that any amount of PM or ozone posed a possibility of some health risk. The rules revised the ozone NAAQS from 0.09 to 0.08, but did not explain how the new level was set or how it worked. An internal EPA report stated that threats to public health decreased with each incrementally lower concentration level. American Trucking Associations, Inc. and numerous other groups (plaintiffs) petitioned the United States Court of Appeals for the District of Columbia Circuit for review, arguing that the EPA’s PM and ozone NAAQS failed to articulate clear standards to guide the application of the relevant Act provisions.
Rule of Law
Holding and Reasoning (Per curiam)
What to do next…
Unlock this case brief with a free (no-commitment) trial membership of Quimbee.
You’ll be in good company: Quimbee is one of the most widely used and trusted sites for law students, serving more than 97,000 law students since 2011. Some law schools—such as Yale, Vanderbilt, Berkeley, and the University of Illinois—even subscribe directly to Quimbee for all their law students. Read our student testimonials.
Learn more about Quimbee’s unique (and proven) approach to achieving great grades at law school.
Quimbee is a company hell-bent on one thing: helping you get an “A” in every course you take in law school, so you can graduate at the top of your class and get a high-paying law job. We’re not just a study aid for law students; we’re the study aid for law students. Read more about Quimbee.
Here's why 221,000 law students have relied on our case briefs:
- Written by law professors and practitioners, not other law students. 14,100 briefs, keyed to 189 casebooks. Top-notch customer support.
- The right amount of information, includes the facts, issues, rule of law, holding and reasoning, and any concurrences and dissents.
- Access in your classes, works on your mobile and tablet. Massive library of related video lessons and high quality multiple-choice questions.
- Easy to use, uniform format for every case brief. Written in plain English, not in legalese. Our briefs summarize and simplify; they don’t just repeat the court’s language.