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Cost-Benefit Analysis Through the Back Door of "Reasoned Decisionmaking"?

February 2001

Citation: 31 ELR 10228

Issue: 2

Author: Richard G. Stoll

Few environmental cases have received as much attention as American Trucking Ass'n v. U.S. Environmental Protection Agency,2 recently argued before the U.S. Supreme Court. Even readers of the mainstream press3 are aware that industrial petitioners have urged the Court to inject cost-benefit considerations into the Clean Air Act (CAA) ambient air quality standard-setting process, and in effect overrule the 20-year Lead Industries Ass'n v. U.S. Environmental Protection Agency4 precedent of the D.C. Circuit.

Two little-noticed D.C. Circuit cases decided in the summer of 2000, however, have imposed at least some form of cost-benefit obligations on the U.S. Environmental Protection Agency (EPA) despite statutory silence on the issue. In both cases, the court vacated EPA rules on "reasoned decisionmaking" grounds, and said that cost-benefit factors should be evaluated by the Agency.

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