Air Quality Measures Consistently Cost Less than Predicted
In December 1970, the Clean Air Act became law. A triumph of bipartisanship, the statute has delivered cleaner, healthier air to millions of Americans and has proved to be one of the most cost-effective regulatory programs in American history.
EPA valued the total health benefits through 1990 at $22.2 trillion and the total compliance costs over the same years at $0.5 trillion, resulting in net monetary benefits of $21.7 trillion. The Clean Air Act continues to deliver these benefits, supplemented by the considerable health and environmental gains from the Clean Air Act Amendments of 1990.