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Clean Air Act Overview

Benefits and Costs of the Clean Air Act 1990-2020. Supporting Technical Reports

In March 2011, EPA issued the Second Prospective Report which looked at the results of the Clean Air Act from 1990 to 2020. According to this study, the central benefits estimate exceeds costs by a factor of more than 30 to one. The report was updated in April 2011.

Below are the supporting technical reports for these components:

  • Emissions
  • Direct Cost
  • Air Quality Modeling
  • Health and Welfare Effects (including Economic Valuation)
  • Hazardous Air Pollutant Case Study
  • Uncertainty Analysis - draft report
  • Macroeconomic Modeling - draft report

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