Air Pollution: EPA's Progress in Determining the Costs and Benefits of Clean Air Legislation

Pursuant to a congressional requirement, GAO reviewed the Environmental Protection Agency's (EPA) cost-benefit analyses of the 1990 Clean Air Act amendments and any previous amendments to the Clean Air Act, focusing on EPA: (1) methodology for conducting the cost-benefit analyses; (2) progress in completing the analyses; and (3) costs for contractors and staff used to complete these analyses.